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.

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Catalog No. Product Name Enrichment
Quantity Price
106296 N1-α-L-Arabinopyranosylamino-guanidine HCl
200 mg $190   Add to Cart
1 g $590   Add to Cart
106202 N1-α-L-Arabinopyranosylamino-guanidine HNO3
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106201 D-Arabinose diethyldithioacetal
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106271 L-Arabinose diethyldithioacetal
1 g $290   Add to Cart
5 g $890   Add to Cart
106281 L-Arabinose hydrazone
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C89594 D-Arabinose-2,3,4,5-13C4
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106267 D-Arabinose-5-phosphate disodium salt
1 mg $390   Add to Cart
5 mg $1,190   Add to Cart
107994 1-5-α-L-Arabinotetraose
10 mg $290   Add to Cart
50 mg $890   Add to Cart
107993 1-5-α-L-Arabinotriose
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106314 DL-Arabitol
Synonyms:
DL-Arabinitol;
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106334 L-Arabonic acid-1-4-lactone
Synonyms:
L-Arabono-1-4-lactone;
100 mg $190   Add to Cart
500 mg $590   Add to Cart
89595 Arachidic Acid
Synonyms:
Eicosanoic Acid, Icosanoic Acid; NSC 93983; n-Eicosanoic Acid; Arachic Acid;;
100 mg $345   Add to Cart
500 mg $360   Add to Cart
102153 Arachidonic acid - 10%
1 g $90   Add to Cart
5 g $288   Add to Cart
89596 Arachidonoyl-1-thio-Glycerol
Synonyms:
(5Z,8Z,11Z,14Z)-5,8,11,14-Eicosatetraenethioic Acid S-(2,3- Dihydroxypropyl) Ester;
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89597 1-Arachidoyl-sn-glycero-3-phosphocholine
Synonyms:
(7R)-4,7-Dihydroxy-N,N,N-trimethyl-10-oxo-3,5,9-trioxa-4- phosphanonacosan-1-aminium Inner Salt 4-Oxide; (R)-4,7-Dihydroxy- N,N,N-trimethyl-10-oxo-3,5,9-trioxa-4-phosphanonacosan-1-aminium Inner Salt 4-Oxide;
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89599 1-Arachydyl-2-stearidonoyl glycerol 3-phosphocholine
Synonyms:
(R)-3-(Icosanoyloxy)-2-((6Z,9Z,12Z,15Z)-octadeca-6,9,12,15- tetraenoyloxy)propyl (2-(trimethylammonio)ethyl) Phosphate;
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108792 Aramite
1 ml $190   Add to Cart
76514 Arbekactin sulfate
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6910 Arbidol
Synonyms:
6-Bromo-4-[(dimethylamino)methyl]-5-hydroxy-1-methyl-2- [(phenylthio)methyl]-,1H-indole-3-carboxylic Acid Ethyl Ester Hydrochloride; Arbidol Hydrochloride;
10 mg $190   Add to Cart
100 mg $890   Add to Cart
76437 Arbidol impurity A
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76438 Arbidol impurity B
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C76439 Arbidol impurity C
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D76440 Arbidol impurity D
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76441 Arbidol impurity E
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76443 Arbidol impurity F hydrochloride
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76444 Arbidol impurity G
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76445 Arbidol impurity H
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76446 Arbidol impurity I
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76447 Arbidol impurity J
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76442 Arbidol sulfone
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101292 Arbutin - Synthetic origin
Synonyms:
Hydroquinone-b-D-glucoside;
100 g $90   Add to Cart
500 g $288   Add to Cart
102232 Z-Arg(Mtr)-OH cyclohexylammonium salt
5 g $190   Add to Cart
25 g $590   Add to Cart
O102210 H-Arg(Mtr)-OH H2O
5 g $190   Add to Cart
25 g $590   Add to Cart
102107 Z-Arg(NO2)-OH
25 g $190   Add to Cart
100 g $590   Add to Cart
102136 H-D-Arg(Pbf)-OH
2 g $190   Add to Cart
10 g $590   Add to Cart
102219 Z-D-Arg(pbf)-oh cha
500 mg $190   Add to Cart
2 g $590   Add to Cart
102185 Z-Arg(Pmc)-OH.CHA
500 mg $190   Add to Cart
2 g $590   Add to Cart
102187 H-Arg(Tos)-OH
25 g $190   Add to Cart
100 g $590   Add to Cart
102209 H-D-Arg(Tos)-OH
1 g $190   Add to Cart
5 g $590   Add to Cart
102106 Z-Arg(Z)2-OH
2 g $190   Add to Cart
10 g $590   Add to Cart
102188 H-D-Arg-NH2 • 2HCl
1 g $90   Add to Cart
5 g $288   Add to Cart
102212 Z-Arg-pNA HCl
250 mg $90   Add to Cart
1 g $288   Add to Cart
76938 Argatroban (L,2R,4S)-isomer
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76953 Argatroban Impurity
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76956 2R,4R-Argatroban Impurity
Synonyms:
Argatroban Related Compound A;
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76944 Argatroban impurity 3
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76945 Argatroban impurity 4
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76946 Argatroban impurity 5
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76947 Argatroban impurity 6
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76950 Argatroban impurity 7
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76951 Argatroban Impurity 8
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76954 Argatroban impurity A
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76939 Argatroban impurity B
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C76940 Argatroban impurity C
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D76941 Argatroban impurity D
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36359 Argatroban Related Compound B
20 mg $1,171   Add to Cart
76957 Argatroban Related Impurity 1
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76958 Argatroban related impurity 2
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D76949 Argatroban-(D,2S,4S)-isomer
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102189 L-Argininamide dihydrochloride
1 g $90   Add to Cart
5 g $288   Add to Cart
36360 Arginine Ethyl Ester DHCl
250 mg $715   Add to Cart
102110 N-α-Z-L-Arginine HCl
10 g $190   Add to Cart
50 g $590   Add to Cart
102112 L-Arginine-L-glutamate
25 g $90   Add to Cart
100 g $288   Add to Cart
102109 L-Arginine-L-pyroglutamate
1 g $190   Add to Cart
5 g $590   Add to Cart
36361 ArginineHCl
125 mg $671   Add to Cart
89612 (2S)-Arimoclomol Maleic Acid
Synonyms:
N-[(2S)-2-Hydroxy-3-(1-piperidinyl)propoxy]-3- Pyridinecarboximidoyl Chloride 1-Oxide (2Z)-2-Butenedioate;
0.5 mg $420   Add to Cart
1 mg $515   Add to Cart
89614 rac-Arimoclomol Maleic Acid
Synonyms:
N-[2-Hydroxy-3-(1-piperidinyl)propoxy]-3-pyridinecarboximidoyl Chloride 1-Oxide (2Z)-2-Butenedioate;
2.5 mg $390   Add to Cart
10 mg $575   Add to Cart
76559 Aripiprazole bromo impurity
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108739 Aripiprazole Dimer
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76557 Aripiprazole dimer impurity
5 mg $690   Add to Cart
25 mg $2,190   Add to Cart
76556 Aripiprazole impurity
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76570 Aripiprazole impurity 10
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76574 Aripiprazole impurity 11
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76575 Aripiprazole impurity 12
Synonyms:
8-(2,3-Dichlorophenyl)-8-aza-5-azoniaspiro[4.5]decane bromide;
100 mg $290   Add to Cart
500 mg $990   Add to Cart
76578 Aripiprazole impurity 15
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76580 Aripiprazole impurity 17
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76581 Aripiprazole impurity 18
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76582 Aripiprazole impurity 19
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76564 Aripiprazole impurity 2
Synonyms:
1-(3-Buten-1-yl)-4-(2,3-dichlorophenyl)-piperazine;
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76583 Aripiprazole impurity 20
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76562 Aripiprazole impurity 3
Synonyms:
7-(3-Buten-1-yloxy)-3,4-dihydro-2(1H)-quinolinone;
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76563 Aripiprazole impurity 4
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76566 Aripiprazole impurity 6
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76567 Aripiprazole Impurity 7
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76568 Aripiprazole impurity 8
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76569 Aripiprazole impurity 9
Synonyms:
Aripiprazole N4-Oxide;
5 mg $290   Add to Cart
25 mg $990   Add to Cart
76553 Aripiprazole impurity B
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76558 Aripiprazole metabolite
Synonyms:
3,4-Dihydro-7-(3’’carboxy)propoxy-2(1H)-quinolinone;
1 g $590   Add to Cart
5 g $1,790   Add to Cart
76560 Aripiprazole related compound
Synonyms:
5-(4-bromobutoxy)-3,4-dihydroquinolin-2(1H)-one;
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36362 Aripiprazole Related Compound F
25 mg $1,171   Add to Cart
36365 Aripiprazole Related Compound H
25 mg $1,171   Add to Cart
76552 Aripiprazole related compound hydrochloride
Synonyms:
OPC 14714;
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89616 ARL 14495
Synonyms:
2,8-Dimethyl-1-oxa-8-azaspiro[4.5]decan-3-one;;
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110050 Aroclor 1221, CAS 11104-28-2, 1000 µg/mL in n-Hexane
Synonyms:
Aroclor 1221; PCB 1221;
1 ml $124   Add to Cart
110052 Aroclor 1248, CAS 12672-29-6, 1000 µg/mL in n-Hexane
Synonyms:
Aroclor 1248; PCB 1248;
1 ml $124   Add to Cart
110053 Aroclor 1254, CAS 11097-69-1, 1000 µg/mL in n-Hexane
Synonyms:
PCB 1254; Aroclor 1254;
1 ml $120   Add to Cart
110054 Aroclor 1262, CAS 37324-23-5, 1000 µg/mL in n-Hexane
Synonyms:
Aroclor 1262;
5 x ml $178   Add to Cart
110055 Aroclor 1268, CAS 11100-14-4, 1000 µg/mL in n-Hexane
Synonyms:
Aroclor 1268;
5 x ml $178   Add to Cart
110156 Aroclor 5432, CAS 63496-31-1, 10 µg/mL in Cyclohexane
110216 Aroclor 5442, CAS 12642-23-8, 10 µg/mL in Cyclohexane
Synonyms:
Polychlorinated m-terphenyl; Aroclor 5442;
1 ml $120   Add to Cart
110157 Aroclor 5460, CAS 11126-42-4, 10 µg/mL in Cyclohexane
Synonyms:
Aroclor 5460; Polychlorinated o-terphenyl;
89617 Arphamenine B hemisulfate
Synonyms:
(&α;R)-&α;-[(3S)-3-Amino-6-[(aminoiminomethyl)amino]-2- oxohexyl]-4-hydroxybenzenepropanoic Acid Sulfate;;
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89618 ARS-853
Synonyms:
1-[3-[4-[2-[[4-Chloro-2-hydroxy-5-(1-methylcyclopropyl)phenyl] amino]acetyl]-1-piperazinyl]-1-azetidinyl]-2-propen-1-one;
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36364 Arsanilic Acid
25 mg $715   Add to Cart
C76434 Artemether impurity C
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36367 Artemether Related Compound B
Synonyms:
α-Artemether;
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89620 Artemisic Acid
Synonyms:
2-((1R,4R,4aS,8aS)-4,7-Dimethyldecahydronaphthalen-1-yl)acrylic Acid; [1R-(1&α;,4 β,4a β,8a β)]-1,2,3,4,4a,5,6 ,8a-Octahydro-4,7-dimethyl-&α;-methylene-1-naphthaleneacetic Acid; (1R,4R,4aS,8aR)-1,2,3,4,4a,5,6,8a-Octahydro-4,7-dimethyl- &α;-methylene-1-naphthaleneacetic Acid; Arteannuic Acid; Arteannuinic Acid; Artemisinic Acid; Artemisininic Acid; Qing Hao Acid; Qing Hau Acid;
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89621 Artemisinic Alcohol
Synonyms:
[1R-(1&α;,4 β,4a β,8a β)]-1,2,3,4,4a,5,6,8a- Octahydro-4,7-dimethyl- β-methylene-1-naphthaleneethanol; (1R,4R,4aS,8aR)-1,2,3,4,4a,5,6,8a-Octahydro-4,7-dimethyl- β- methylene-1-naphthaleneethanol; Amorpha-4,11-dien-12-ol; Arteannuic Alcohol; Artemisinic Alcohol; trans-Arteannuic Alcohol;
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89622 Artemisinic Aldehyde
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C76604 Artepillin C
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76624 Articaine impurity A
Synonyms:
Acetamidoarticaine hydrochloride;
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76625 Articaine impurity B
Synonyms:
Articaine acid hydrochloride;
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C76626 Articaine impurity C
Synonyms:
Articaine isopropyl ester hydrochloride;
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D76627 Articaine impurity D
Synonyms:
Ethylarticaine hydrochloride;
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76628 Articaine impurity E
Synonyms:
Isopropylarticaine hydrochloride;
   Request Quote
76629 Articaine impurity F
Synonyms:
Articaine acid propionamide hydrochloride;
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76630 Articaine impurity G
Synonyms:
Butylarticaine hydrochloride;
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76631 Articaine impurity H
Synonyms:
Dipropylarticaine hydrochloride;
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76632 Articaine impurity I
Synonyms:
Methyl 3-amino-4-methylthiophene-2-carboxylate;
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76633 Articaine impurity J
Synonyms:
Methyl 3-[[(2RS)-2-bromopropanoyl]amino]-4-methylthiophene-2- carboxylate;
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108793 Arylpyrazol
Synonyms:
ACE5599; 2-Chloro-N-[1-[2,6-dichloro-4-(difluoromethyl)phenyl]-4- nitro-1H-pyrazol-5-yl]propanamide; BAY 11340; SLA 5599;
100 mg $482   Add to Cart
43507 Arzoxifene
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111152 AS 2444697
Synonyms:
N-[3-(Aminocarbonyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-yl ]-2-(2-methyl-4-pyridinyl)-4-oxazolecarboxamide Hydrochloride; N-[3-Carbamoyl-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-yl]-2-(2 -methylpyridin-4-yl)-1,3-oxazole-4-carboxamide Hydrochloride;
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93796 (3’aS,4’R,5’R,6’aR)-5’-[[(1,1-Dimethylethyl)dimethylsilyl]oxy] hexahydro-5,5-dimethylspiro[1,3-dioxane-2,2’(1’H)-pentalene]-4’- carboxylic Acid Methyl Ester
Synonyms:
(3’a&α;,4’&α;,5’ β,6’a&α;)-(-)-5’-[[(1,1- Dimethylethyl)dimethylsilyl]oxy]hexahydro-5,5-dimethyl-spiro[1,3- dioxane-2,2’(1’H)-pentalene]-4’-carboxylic Acid Methyl Ester;
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93791 (1E,3R,4S)-1-[(3’aS,4’R,5’R,6’aR)-5’-[[(1,1-Dimethylethyl) dimethylsilyl]oxy]hexahydro-5,5-dimethylspiro[1,3-dioxane-2, 2’(1’H)-pentalen]-4’-yl]-4-methyl-1-octen-6-yn-3-ol
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93793 (1E)-1-[(3’aS,4’R,5’R,6’aR)-5’-[[(1,1-Dimethylethyl)dimethylsilyl ]oxy]hexahydro-5,5-dimethylspiro[1,3-dioxane-2,2’(1’H)-pentalen]- 4’-yl]-4-methyl-1-octen-6-yn-3-one
Synonyms:
[3’aS-[3’a&α;,4’&α;(E),5’ β,6’a&α;]]-1-[5’-[[(1, 1-Dimethylethyl)dimethylsilyl]oxy]hexahydro-5,5-dimethylspiro[1,3 -dioxane-2,2’(1’H)-pentalen]-4’-yl]-4-methyl-1-octen-6-yn-3-one; Spiro[1,3-dioxane-2,2’(1’H)-pentalene], 1-octen-6-yn-3-one deriv.;
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95450 (3’aS,4’R,5’R,6’aR)-Hexahydro-5’-hydroxy-5,5-dimethyl-spiro[1,3- dioxane-2,2’(1’H)-pentalene]-4’-carboxylic Acid Methyl Ester
Synonyms:
[3’aS-(3’a&α;,4’&α;,5’ β,6’a&α;)]-Hexahydro-5’- hydroxy-5,5-dimethylspiro[1,3-dioxane-2,2’(1’H)-pentalene]-4’- carboxylic Acid Methyl Ester;
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95451 [3’aS-(3’aα,4’α,6’aα)]-Hexahydro-5,5-dimethyl-5’-oxo- spiro[1,3-dioxane-2,2’(1’H)-pentalene]-4’-carboxylic Acid Methyl Ester
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111146 AS1810722
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89627 AS1949490
Synonyms:
3-[(4-Chlorophenyl)methoxy]-N-[(1S)-1-phenylethyl]-2- thiophenecarboxamide;
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89648 Asapiprant
Synonyms:
2-[5-[4-[[4-(1-Methylethoxy)phenyl]sulfonyl]-1-piperazinyl]-2-(2- oxazolyl)phenoxy]-acetic Acid;
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76893 19-epi-Ascomycin
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89636 L-Ascorbic acid 2-(dihydrogen phosphate) N,N- dicyclohexylcyclohexanamine
Synonyms:
L-Ascorbic Acid 2-Monophosphate Tris-cyclohexylammonium Salt;
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76513 Ascorbic acid 3-sulfate
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76510 Ascorbic acid impurity B
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C76507 Ascorbic acid impurity C
Synonyms:
D-Sorbosonic acid;
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76509 Ascorbic acid impurity F sodium salt
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76928 cis-Asenapine
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89639 Asenapine citrate
Synonyms:
(3aR,12bR)-rel-5-Chloro-2,3,3a,12b-tetrahydro-2-methyl-1H- dibenz[2,3:6,7]oxepino[4,5-c]pyrrole; trans-5-Chloro-2,3,3a,12b- tetrahydro-2-methyl-1H-dibenz[2,3:6,7]oxepino[4,5-c]pyrrole Citrate;;
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102215 H-D-Asn(Trt)-OH
250 mg $190   Add to Cart
500 mg $590   Add to Cart
102217 Z-Asn(Trt)-OH
1 g $90   Add to Cart
5 g $288   Add to Cart
102054 Z-DL-Asn-OH
25 g $190   Add to Cart
100 g $590   Add to Cart
89642 Asp(5)-Desmopressin Acetate Salt
Synonyms:
N-(3-Mercapto-1-oxopropyl)-L-tyrosyl-L-phenylalanyl-L-glutaminyl- L-aspartyl-L-cysteinyl-L-prolyl-D-arginyl-glycinamide Cyclic (1→5)-Disulfide Acetate Salt;
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89641 Asp(5)-Desmopressin TFA Salt
Synonyms:
N-(3-Mercapto-1-oxopropyl)-L-tyrosyl-L-phenylalanyl-L-glutaminyl- L-aspartyl-L-cysteinyl-L-prolyl-D-arginyl-glycinamide Cyclic (1→5)-Disulfide TFA Salt;
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102218 H-D-Asp(OBzl)-OH
2 g $190   Add to Cart
10 g $590   Add to Cart
102065 Z-Asp(OMe)-OH
1 g $190   Add to Cart
5 g $590   Add to Cart
102213 Z-Asp(OtBu)-OSu
5 g $190   Add to Cart
25 g $590   Add to Cart
102095 Z-DL-Asp-OH
25 g $190   Add to Cart
100 g $590   Add to Cart
111284 [B-Asp5] vasopressin
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89649 Aspartic acid diethyl ester
Synonyms:
DL-Aspartic Acid Diethyl Ester; Diethyl 2-Aminosuccinate; Diethyl DL-Aspartate;O,O-Diethyl-DL-aspartic Acid; Aspartic Acid 1,4- Diethyl Ester;
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