Parent Category: Reference Standards

Unlabeled Reference Standards


Standards are materials containing a precisely known concentration of a substance for use in quantitative analysis in assays of drug substances and formulations, blood analyses, limit tests, or controls. A standard can also provide a reference that can be used to calibrate analytical instruments as in identification tests, system suitability tests, or chromatographic peak markers.

The standards listed below are not labeled in any position. They are used for multiple avenues of focus such as environmental standards, in-born errors, pharmaceutical reference standards, unlabeled reference standards and impurities reference standards.

Catalog No. Product Name Enrichment
Quantity Price
77134 Azilsartan impurity M
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77122 Azilsartan impurity N
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O77123 Azilsartan impurity O
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77124 Azilsartan impurity P
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77125 Azilsartan impurity Q
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77126 Azilsartan impurity R
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108799 Azimsulfuron
10 mg $1,651   Add to Cart
89725 Azinphos-ethyl
Synonyms:
Phosphorodithioic Acid O,O-Diethyl Ester S-Ester With 3- (Mercaptomethyl)-1,2,3-benzotriazin-4(3H)-one; 1,2,3- Benzotriazine Phosphorodithioic Acid Derivative; Azinphos A; Azinphos-ethyl; Bayer 16259; Cotnion-ethyl; Ethyl Gusathion; Ethyl Guthion; Ethyl Azinphos; Gusathion A; Gusathion H; Gusathion K; Gusathion K Forte; Gusathion Ethyl; Guthion Ethyl; O ,O-Diethyl S-(4-Oxo-3H-1,2,3-benzotriazine-3-methyl) Phosphorodithioate; O,O-Diethyl S-(4-Oxobenzotriazino-3-methyl) Phosphorodithioate; O,O-Diethyl S-[4-Oxo-1;
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110188 Azinphos-methyl-oxon 10 µg/mL in Cyclohexane. Short expiry date due to chemical nature of component(s)
Synonyms:
Guthoxon; O,O-Dimethyl S-(4-oxobenzotriazino-3-methyl) phosphorothiolate; Gutoxon; S-3,4-Dihydro-4-oxo-1,2,3- benzotriazin-3-ylmethyl O,O-dimethyl phosphorothioate, Phosphorothioic acid, O,O-dimethyl S-[(4-oxo-1,2,3-benzotriazin- 3(4H)-yl)methyl] ester; Ph...;
1 ml $318   Add to Cart
108800 Aziprotryne
250 mg $136   Add to Cart
77889 3-((2-(Aziridin-1-yl)ethyl)amino)propyl dihydrogen phosphate
Synonyms:
Cyclophosphamide impurity;
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92054 3-(Aziridin-1-yl)propyl hydrogen aziridin-1-ylphosphonate
Synonyms:
Cyclophosphamide Impurity 1;
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110777 (Aziridin-1-yl)[3-(aziridin-1-yl) propyl]phosphonic Acid
Synonyms:
Cyclophosphamide Impurity 18;
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5395 Azithromycin
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54046 Azithromycin B
0.5 mg $590   Add to Cart
2.5 mg $1,890   Add to Cart
C76800 Azithromycin EP impurity C
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36386 Azithromycin Identity
75 mg $1,171   Add to Cart
76797 Azithromycin impurity H
Synonyms:
Azithromycin related compound H; 3’’-N-[[4-(Acetylamino)phenyl]sulfonyl]- 3’’-N-demethyl azithromycin;
10 mg $290   Add to Cart
50 mg $990   Add to Cart
36385 Azithromycin Related Compound F
25 mg $1,171   Add to Cart
102010 7-7-Azo-3-α-12-α-dihydroxytaurocholanic acid sodium salt
Synonyms:
2-[[(3a-5b-12a)-7-Azi-3-12-dihydroxy-24-oxocholan-24-yl]amino] ethanesulfonic acid sodium salt;
5 mg $290   Add to Cart
25 mg $890   Add to Cart
89727 Azobenzene-4,4’-diboronic Acid
Synonyms:
(E)-(Diazene-1,2-diylbis(4, 1-phenylene))diboronic Acid;
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101812 Azomethine-H monosodium salt monohydrate
5 g $90   Add to Cart
25 g $288   Add to Cart
5396 Aztreonam
Synonyms:
[2S-[2a,3ß(Z)]]-2-[[[1-(2-Amino-4-thiazolyl)-2-[(2-methyl-4-oxo- 1-sulfo-3-azetidinyl)amino]-2-oxoethylidene]amino]oxy]-2- methylpropanoic acid;
50 mg $290   Add to Cart
500 mg $390   Add to Cart
36389 Aztreonam E-Isomer
15 mg $1,171   Add to Cart
76397 Aztreonam impurity A
Synonyms:
Open ring aztreonam; (2S,3S)-2-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-[(1-carboxy-1- methylethoxy)imino]acetyl]amino]-3-(sulfoamino)butanoic acid;
5 mg $390   Add to Cart
76398 Aztreonam impurity B
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D76399 Aztreonam impurity D
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76400 Aztreonam impurity E
5 mg $990   Add to Cart
76401 Aztreonam impurity F
5 mg $990   Add to Cart
98082 (2R,3S)-(−)-N-Z-6-Oxo-2,3-diphenylmorpholine
Synonyms:
(2R-cis)-6-Oxo-2,3-diphenyl-4-morpholinecarboxylic Acid Phenylmethyl Ester; William’s Lactone;;
250 mg $360   Add to Cart
1 g $410   Add to Cart
5397 Babutramine HCl
0.1 g $495   Add to Cart
0.5 g $950   Add to Cart
36391 BacampicillinHCl
200 mg $715   Add to Cart
36392 Bacitracin
1 g $715   Add to Cart
4704 Baclofen
Synonyms:
(b-(Aminomethyl)-4-chloro-benzenepropanoic Acid; b-(Aminomethyl)-p-chlorohydrocinnamic Acid; b-(4-Chlorophenyl)-GABA; Ba-34647; Baclon; Clofen; Lioresal);
5 g $390   Add to Cart
500 mg $190   Add to Cart
77606 Baclofen impurity 2
Synonyms:
β-(4-Chlorophenyl)-gama-Hydroxybutyric acid;
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77603 Baclofen impurity B
Synonyms:
3-(4-Chlorophenyl)glutaramic acid;
1 g $90   Add to Cart
5 g $290   Add to Cart
36393 Baclofen Related Compound A
50 mg $1,171   Add to Cart
36394 Bacoside A3
15 mg $1,015   Add to Cart
4837 Baicalein
Synonyms:
5,6,7-Trihydroxyflavone;
500 mg $390   Add to Cart
10 g $690   Add to Cart
89729 rac-Balanol
Synonyms:
(±)-Balanol; 4-(2-Carboxy-6-hydroxybenzoyl)-3,5-dihydroxybenzoic Acid trans-1-[Hexahydro-3-[(4-hydroxybenzoyl)amino]-1H-azepin-4- yl] Ester;
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89731 L-Balenine
Synonyms:
Balenine, L-N- β-Alanyl-1-methylhistidine; β-Alanyl-1- methyl-L-histidine; N- β-Alanyl-1-methyl-L-histidine;
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110874 Balipodect
Synonyms:
TAK-063;
10 mg $290   Add to Cart
101212 Balofloxacin
1 g $190   Add to Cart
5 g $590   Add to Cart
77742 Balofloxacin
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4799 Balsalazide
Synonyms:
5-[Bis(2-chloroethyl)-amino]-1-methyl-1H-benzimidazole-2-butanoic Acid Hydrochloride; Cytostasan; Ribomustin;
5 mg $190   Add to Cart
10 mg $290   Add to Cart
36396 Balsalazide Related Compound A
100 mg $1,171   Add to Cart
36397 Balsalazide Related Compound B
25 mg $1,171   Add to Cart
77557 Balsalazide USP impurity 3
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77558 Balsalazide USP impurity 4
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77559 Balsalazide USP impurity 5
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4727 Bambuterol HCl
Synonyms:
Dimethylcarbmic acid 5-[2-[(1,1-dimethylethyl)amino]-1- hydroxyethyl]-1,3-phenylene ester;
25 mg $190   Add to Cart
100 mg $390   Add to Cart
77281 Bamifylline
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89732 Bamipine
Synonyms:
4-(N-Benzylanilino)-1-methylpiperidine; Bamipin; Bamipine; N- Phenyl-N-benzyl-4-amino-1-methylpiperidine; Soventol; Taumidrine; 1-Methyl-N-phenyl-N-(phenylmethyl)-4-piperidinamine;
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89770 BAPTA
Synonyms:
1,2-Bis(2-aminophenoxy)ethane-N,N,N’,N’-tetraacetic Acid; N,N’-[1 ,2-Ethanediylbis(oxy-2,1-phenylene)]bis[N-(carboxymethyl)glycine; BAPTA;;
100 mg $345   Add to Cart
250 mg $350   Add to Cart
4698 BAPTA-tetramethyl Ester
Synonyms:
(Tetramethyl-1,2 bis-(2-aminophenoxy)ethane-N,N,N’,N’- tetraacetate);
1 g $390   Add to Cart
2 g $690   Add to Cart
108801 Barban
100 mg $204   Add to Cart
89734 Barbigerone
Synonyms:
8,8-Dimethyl-3-(2,4,5-trimethoxyphenyl)-4H,8H-benzo[1,2-b:3,4-b’] dipyran-4-one; Ionchocarpusone; Lonchocarpusone;
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89736 Barbituric Acid
Synonyms:
2,4,6(1H,3H,5H)-Pyrimidinetrione; 1,2,3,4,5,6-Hexahydro-2,4,6- pyrimidinetrione; 2,4,6-Pyrimidinetriol; 2,4,6-Pyrimidinetrione; 2,4,6-Trihydroxypyrimidine; 2,4,6-Trioxohexahydropyrimidine; 6- Hydroxyuracil; Hexahydropyrimidine-2,4,6-trione; Malonylurea; NSC 7889; Fluorouracil Related Compound A;
100 mg $410   Add to Cart
1 g $1,280   Add to Cart
89738 Barium chloride dihydrate
Synonyms:
Barium Chloride Dihydrate (8CI); Barium Chloride (BaCl2) Hydrate; Barium Dichloride Dihydrate;
5 g $350   Add to Cart
25 g $355   Add to Cart
89771 Barium Hydroxide (Anhydrous)
Synonyms:
Barium Dihydroxide; Caustic Baryta;
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77608 Barnidipine
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18508 Barnidipine hydrochloride
5 mg $90   Add to Cart
25 mg $290   Add to Cart
108802 Basic Blue 7
100 mg $282   Add to Cart
108803 Basic Green 1
100 mg $276   Add to Cart
102868 Basic Red 46 - Technical grade
Synonyms:
5-[(e)-4-[Benzyl(methyl)amino]phenyldiazenyl]-1-4-dimethyl-4-5- dihydro-1h-1-2-4-triazol-1-ium bromide;
1 g $190   Add to Cart
5 g $590   Add to Cart
108804 Basic Violet 1
Synonyms:
Gentian Violet B; Pentamethyl pararosaniline chloride; Aniline, p -[[p-(dimethylamino)phenyl][4-(methylimino)-2,5-cyclohexadien-1- ylidene]methyl]-N,N-dimethyl-, monohydrochloride (8CI); Benzenamine, 4-[[4-(dimethylamino)phenyl][4-(methylimino)-2,5- cyclohe...;
100 mg $176   Add to Cart
D108805 Basic Violet 3-d6
10 mg $367   Add to Cart
89739 Batatasin I
Synonyms:
2,5,7-Trimethoxy-3-phenanthrenol; 6-Hydroxy-2,4,7- trimethoxyphenanthrene;
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89740 Batatasin II
Synonyms:
3,4-Dimethoxy-6-(2-phenylethyl)-1,2-benzenediol;
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89741 Batatasin III
Synonyms:
3-[2-(3-hydroxyphenyl)ethyl]-5-methoxyphenol; 3,3’-Dihydroxy-5- methoxybibenzyl;
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89742 Batyl Alcohol
Synonyms:
(RS)-Batyl alcohol; (±)-1-Octadecylglycerol; (±)-3- (Octadecyloxy)-1,2-propanediol; (±)-Batyl alcohol; 1-O- Octadecylglycerol; 1-Octadecylglycerol; 1-Octadecyloxy-2,3- dihydroxypropane; 1-Octadecyloxy-2,3-propanediol; 2,3- Dihydroxypropyl octadecyl ether; 3-(Octadecyloxy)-1,2- propanediol; 3-Stearyloxy-1,2-propylene glycol; Batil alcohol; Batilol; Batyl alcohol; Glycerol 1-octadecyl ether; Glycerol 1- octdecyl ether; Glycerolmonooctadecyl ether; Glyceryl-1-octadecyl ether; NSC 284200; NSC 8716; Nikkol Batyl Alcoh;
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89744 BAY 87-2243
Synonyms:
1-Cyclopropyl-4-[4-[[5-methyl-3-[3-[4-(trifluoromethoxy)phenyl]-1 ,2,4-oxadiazol-5-yl]-1H-pyrazol-1-yl]methyl]-2-pyridinyl]- piperazine;
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110595 BAY 876
10 mg $390   Add to Cart
102952 Bayogenin
2 mg $190   Add to Cart
10 mg $590   Add to Cart
77691 Bazedoxifene impurity 1
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77692 Bazedoxifene impurity 2
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77693 Bazedoxifene impurity 3
Synonyms:
Des(1-azepanyl)ethyl bazedoxifene;
10 mg $290   Add to Cart
50 mg $990   Add to Cart
77687 Bazedoxifene impurity 4
Synonyms:
5-O-Benzylbazedoxifene;
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77688 Bazedoxifene impurity 5
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77689 Bazedoxifene impurity 6
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77690 Bazedoxifene impurity 7
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89746 BB-22 3-Carboxyindole metabolite
Synonyms:
1-(Cyclohexylmethyl)-1H-indole-3-carboxylic Acid;
1 mg $380   Add to Cart
2.5 mg $450   Add to Cart
89748 BB-9000
Synonyms:
2-Acetylaminopyridin-5-ylboronic Acid; B-[6-(Acetylamino)-3- pyridinyl]boronic Acid;;
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89747 BB-K 6 N-(Benzyloxy) Carbamate
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89749 9-BBN Dimer
Synonyms:
9-BBN dimer; 9-Borabicyclo[3.3.1]nonane dimer; 9- Borabicyclononane dimer; Bis- 9-borabicyclo[3.3.1]nonane; 1,1:2,2 -bis(1,5-Cyclooctanediyl)-diborane;
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89750 BCX 4430
Synonyms:
(2S,3S,4R,5R)-2-(4-Amino-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-5- (hydroxymethyl)-3,4-pyrrolidinediol Monohydrochloride; (2S,3S,4R, 5R)-2-(4-Amino-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-5-(hydroxymethyl) -3,4-pyrrolidinediol Hydrochloride;
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89757 BDE 183
Synonyms:
1,2,3,5-Tetrabromo-4-(2,4,5-tribromophenoxy)benzene; 2,2’,3,4,4’, 5’,6-Heptabromodiphenyl Ether; PBDE 183;;
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C89758 BDE 183-13C6
Synonyms:
1,2,3,5-Tetrabromo-4-(2,4,5-tribromophenoxy)benzene-13C6; 2,2’,3, 4,4’,5’,6-Heptabromodiphenyl Ether-13C6; PBDE 183-13C6;;
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89751 BDE 28
Synonyms:
2,4-Dibromo-1-(4-bromophenoxy)benzene; p-Bromophenyl 2,4- Dibromophenyl Ether; 2,4,4’-Tribromodiphenyl Ether; PBDE 28;;
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89753 BDE 66
Synonyms:
1,2-Dibromo-4-(2,4-dibromophenoxy)benzene; 2,3’,4,4’- Tetrabromodiphenyl Ether; PBDE 66;;
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C89754 BDE 66-13C6
Synonyms:
1,2-Dibromo-4-(2,4-dibromophenoxy)benzene-13C6; 2,3’,4,4’- Tetrabromodiphenyl Ether-13C6; PBDE 66-13C6;;
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89755 BDE 85
Synonyms:
1,2,3-Tribromo-4-(2,4-dibromophenoxy)benzene; 2,2’,3,4,4’- Pentabromodiphenyl Ether; PBDE 85;;
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89775 4-BEC Hydrochloride
Synonyms:
4-Bromoethcathinone Hydrochloride;;
5 mg $400   Add to Cart
25 mg $540   Add to Cart
77372 Bedaquiline fumarate
250 mg $290   Add to Cart
108806 Beflubutamid
1 ml $138   Add to Cart
89759 Behenic Acid
Synonyms:
Docosanoic Acid; 1-Docosanoic Acid; B 95; B 95 (Acid); EXL 5; Edenor C 22-85R; Edenor C 22-85RGS; Glycon B 70; Hydrofol 2022- 55; Hydrofol Acid 560; NAA 222S; NAA 22S; NSC 32364; Prifac 2987; Prifrac 2989; n-Docosanoic Acid;
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36400 Behenoyl Polyoxylglycerides
500 mg $715   Add to Cart
77459 Belinostat impurity 1
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110816 Belinostat Acid
5 mg $490   Add to Cart
110814 Belinostat amide
5 mg $490   Add to Cart
110820 Belinostat glucuronide
1 mg $290   Add to Cart
77460 Belinostat Z-isomer
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77413 Beloranib
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77414 Beloranib hemioxalate
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110782 Bemaciclib
Synonyms:
Verzenio;
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36401 Bemotrizinol
200 mg $715   Add to Cart
36402 Bemotrizinol Impurity Mixture
100 mg $1,171   Add to Cart
111232 Bempedoic acid metabolite
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5399 Benazepril HCl
Synonyms:
(3S)-3-[[(1S)-1-(Ethoxycarbonyl)-3-phenylpropyl]amino]-2,3,4,5- tetrahydro-2-oxo-1H-1-benzazepine-1-acetic acid hydrochloride;
25 mg $850   Add to Cart
100 mg $1,900   Add to Cart
77164 Benazepril hydrochloride EP Impurity G
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77168 Benazepril related compound B
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D77169 Benazepril related compound D
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77170 Benazepril related compound E
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89765 (1R)-Benazepril tert-butyl ester
Synonyms:
(3S)-3-[[(1R)-1-(Ethoxycarbonyl)-3-phenylpropyl]amino]-2,3,4,5- tetrahydro-2-oxo-1H-1-benzazepine-1-acetic Acid 1,1-Dimethylethyl Ester; [R-(R*,R*)]-3-[[1-(Ethoxycarbonyl)-3-phenylpropyl]amino]- 2,3,4,5-tetrahydro-2-oxo-1H-1-benzazepine-1-acetic Acid 1,1- Dimethylethyl Ester;
100 mg $550   Add to Cart
1 g $1,600   Add to Cart
D7057 Benazepril-d5 98%D
1 mg $860   Add to Cart
5 mg $1,880   Add to Cart
77166 Benazepril-(17α)
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77165 Benazepril-(S,R)
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4688 Benazeprilat
Synonyms:
(3S)-3-[[(1S)-1-CARBOXY-3-PHENYLPROPYL]AMINO]-2,3,4,5-TETRAHYDRO- 2-OXO-1H-1-BENZAZEPINE-1-ACETIC ACID;
5 mg $390   Add to Cart
10 mg $590   Add to Cart
D7059 Benazeprilat-d5
1 mg $390   Add to Cart
5 mg $1,190   Add to Cart
108807 Benazolin
1 ml $108   Add to Cart
108808 Benazolin-ethyl ester
100 mg $56   Add to Cart
110538 Bendamustine 3-Hydroxyprop-2-yl Ester
10 mg $290   Add to Cart
50 mg $890   Add to Cart
77614 Bendamustine chloro dimer impurity
1 mg $390   Add to Cart
5 mg $1,290   Add to Cart
77613 Bendamustine desmethyl impurity
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77634 Bendamustine dideschloroethyl
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77615 Bendamustine dimer 2’-allyl ester
10 mg $290   Add to Cart
50 mg $990   Add to Cart
77617 Bendamustine ether impurity
Synonyms:
4-(1-Methyl-5-morpholino-1H-benzo[d]imidazol-2-yl)butanoic acid;
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77633 Bendamustine hydrochloride
50 mg $990   Add to Cart
77612 Bendamustine impurity A
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77622 Bendamustine impurity B
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C77631 Bendamustine impurity C
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77635 Bendamustine isopropyl ester impurity
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77616 Bendamustine mannitol ester
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77632 Bendamustine N-alkylated impurity hydrochloride
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77629 Bendamustine related impurity 10
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77630 Bendamustine related impurity 11
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108536 Bendamustine Related Impurity 17
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77620 Bendamustine related impurity 2
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77621 Bendamustine related impurity 3
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77623 Bendamustine related impurity 4
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77624 Bendamustine related impurity 5
Synonyms:
5-[(2-Chloroethyl)(2-hydroxyethyl)amino]-1-methyl-1H- benzimidazole-2-butanoic acid ethyl ester;
10 mg $290   Add to Cart
50 mg $990   Add to Cart
77625 Bendamustine related impurity 6
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77626 Bendamustine related impurity 7
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77627 Bendamustine related impurity 8
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77628 Bendamustine related impurity 9
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108809 Bendiocarb-phenol
Synonyms:
2,2-dimethyl-1,3-benzodioxol-4-ol;
10 mg $260   Add to Cart
77561 Bendroflumethiazide o-isomer
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4827 Benfluorex HCl
Synonyms:
(2-[[1-Methyl-2-[3-(trifluoromethyl)-phenyl]ethyl]amino]ethanol benzoate (ester) HCl);
5 mg $290   Add to Cart
25 mg $390   Add to Cart
18511 Benfotiamine
Synonyms:
S-[2-[[(4-amino-2-methylpyrimidin-5-yl)methyl] (formyl)amino]-5- (phosphonooxy)pent-2-en-3-yl] benzenecarbothioate; S-Benzoylthiamine O-monophosphate;
1 g $90   Add to Cart
5 g $290   Add to Cart
87504 Benfotiamine amide
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