Reference Standards

Medical Isotopes offers a wide range of reference standards, a standardized object or substance which is used as a measurement base for similar objects or substances, such as the pharmaceuticals of Doxycycline-d5 hyclate, Lathosterol-2,2,4,4-d4, Panthenol-d6, Cyclosporin A-13C2,d6, Sodium (+-)-2-Hydroxybutyrate-2,3,3-d3, and Isavuconazole-d4.


Unlabeled Reference Standards

Catalog No. Product Name Enrichment
Quantity Price
5107 4-Chloromethylbenzophenone
500 mg $850   Add to Cart
2 g $1,800   Add to Cart
5141 9-Chloromethylphenanthrene
1 g $800   Add to Cart
5 g $1,900   Add to Cart
103550 4-Chloromethylquinoline
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5117 4-(Chloromethyl]benzyl Methanethiosulfonate
10 mg $700   Add to Cart
50 mg $1,700   Add to Cart
5131 1-(5-Chloronaphthalenesulfonyl)-1H-hexahydro-1,4-diazepine HCl
5 mg $190   Add to Cart
25 mg $290   Add to Cart
103066 6-Chloronicotinoyl chloride
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108923 1-Chlorooctane
250 mg $74   Add to Cart
110193 Chloroparaffin C10 44.82% Cl 10 µg/mL in Cyclohexane
3 x ml $1,569   Add to Cart
110251 Chloropentafluoroethane 100 µg/mL in Methanol
1 ml $100   Add to Cart
5410 Chlorophenamine Maleate
1 g $550   Add to Cart
5 g $1,500   Add to Cart
103438 2-Chlorophenol
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108924 3-Chlorophenol acetate
20 mg $164   Add to Cart
108925 4-Chlorophenol acetate
20 mg $164   Add to Cart
103150 Chlorophenol red
50 g $379   Add to Cart
250 g $663   Add to Cart
101370 Chlorophenol red β-D-galactopyranoside
Synonyms:
CPRG;
50 mg $375   Add to Cart
250 mg $663   Add to Cart
108928 2-(4-Chlorophenoxy) propionic acid
Synonyms:
NSC 70174; CPP; (RS)-2-(4-Chlorophenoxy)propionic acid; 2-(4- Chlorophenoxy)propanoic acid; 2-(4-CPP); 2-(4-Chlorophenoxy) propionic acid; DL-2-(4-Chlorophenoxy)propionic acid; 2-(p- Chlorophenoxy)propionic acid; (±)-2-(4-Chlorophenoxy)propionic acid; Prop...;
1 ml $30   Add to Cart
108926 2-Chlorophenoxyacetic acid
250 mg $82   Add to Cart
108927 3-Chlorophenoxyacetic acid
250 mg $86   Add to Cart
103183 3-Chlorophenyl acetic acid
100 g $350   Add to Cart
500 g $580   Add to Cart
103453 4-Chlorophenyl glyoxal hydrate
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106492 4-Chlorophenyl β-D-glucopyranoside
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5634 2-(4-chlorophenyl)-1H-indole
50 mg    Request Quote
55911 4-(4-Chlorophenyl)-2-pyrrolidinone
Synonyms:
Baclofen impurity A;
1 mg $190   Add to Cart
5 mg $590   Add to Cart
108929 1-(2-Chlorophenyl)-2-thiourea
100 mg $64   Add to Cart
103493 1-(2-ChloRophenyl)-3-methyl-2-pyRazolin-5-one
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103364 1-(4-Chlorophenyl)-4-4-dimethyl-3-pentanone
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5152 rac 3-(4-Chlorophenyl)-4-hydroxybutyric Acid Sodium Salt
Synonyms:
(4-Chloro- -(hydroxymethyl)-benzenepropanoic Acid Sodium salt; -(p-Chlorophenyl)- -hydroxybutyric Acid) Sodium Salt;
1 mg $490   Add to Cart
5 mg $1,290   Add to Cart
110432 N-[2-[2-(4-Chlorophenyl)-4-thiazolyl]ethyl]-butanamide; N-(2-(2- (4-Chlorophenyl)thiazol-4-yl)ethyl)butyramide;
25 mg $190   Add to Cart
100 mg $608   Add to Cart
103525 N-(3-Chlorophenyl)-6-7-dimethoxyquinazolin-4-amine hydrochloride
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77222 (3R,5RS,6RS)-6-(3-Chlorophenyl)-6-hydroxy-5-methyl-3- thiomorpholine carboxylic acid
Synonyms:
Bupropion impurity;
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103333 1-(2-Chlorophenyl)-piperazine hydrochloride
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103579 2-(4-Chlorophenyl)-Quinoline-4-carboxylic acid
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103351 (4-Chlorophenyl)acetic acid hydrazide
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103521 (3-Chlorophenyl)acetyl chloride
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55914 cis-4-(4-Chlorophenyl)cyclohexanecarboxylic acid
Synonyms:
Atovaquone related compound 1;
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103422 (S)-1-(4-Chlorophenyl)ethylamine
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103458 DL-2-(4-Chlorophenyl)glycine
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5090 1-[(4-Chlorophenyl)phenylmethyl]-piperazine
Synonyms:
(1-(p-Chloro- -phenylbenzyl)-piperazine; 4-(4-Chlorobenzhydryl)piperazine); 1-(4-Chlorobenzhydryl)piperazine; Cetirizine impurity A;
1 g $90   Add to Cart
5 g $290   Add to Cart
102222 (2R)-2-[N-[(4-Chlorophenyl)sulfonyl]-N-[2-fluoro-4-(1-2-4- oxadiazol-3-yl)benzyl]amino]-5-5-5-trifluoropentanamide
Synonyms:
BMS-708163;
5 mg $290   Add to Cart
103481 trans-2-(4-Chlorophenyl)vinylboronic acid
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4982 4-Chlorophenyl-2-pyridinylmethanol
Synonyms:
((4-Chlorophenyl)-2-pyridinemethanol); Carbinoxamine impurity A;
5 g $590   Add to Cart
1 g $190   Add to Cart
103216 3-Chlorophenyl-3-propanoic acid
100 g $820   Add to Cart
10 g $190   Add to Cart
110064 4-Chlorophenyl-phenyl ether 10 µg/mL in Methanol
Synonyms:
p-Phenoxychlorobenzene; Ether, p-chlorophenyl phenyl (6CI,7CI,8CI ); 4-Chlorophenyl phenyl ether; p-Chlorodiphenyl oxide; NSC 61839; 1-Chloro-4-phenoxybenzene; Benzene, 1-chloro-4-phenoxy-; 4 -Chlorodiphenyl ether; p-Chlorophenyl phenyl ether; CDE 3; PCDE ...;
103471 [4-(-4-ChlorophenylaMino-1-carbonyl)phenyl]boronic acid
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103474 4-Chlorophenylboronic acid pinacol ester
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103459 3-Chlorophenylglycine
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103460 L-(+)-2-Chlorophenylglycine
   Request Quote
103463 D-(+)-2-ChlorophenylglycIne
   Request Quote
103538 (S)-4-Chlorophenylglycine
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103144 2-Chlorophenylhydrazine HCl
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O107610 8-(4-Chlorophenylthio)-2’-O-methyladenosine 3’-5’-cyclic monophosphate sodium salt
Synonyms:
8CPT-2Me-cAMP sodium salt;
1 mg $475   Add to Cart
5 mg $925   Add to Cart
103109 8-(4-Chlorophenylthio)adenine
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107608 8-(4-Chlorophenylthio)adenosine 3’-5’-cyclic monophosphate
Synonyms:
pCPT-cAMP;
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107609 8-(4-Chlorophenylthio)guanosine 3’-5’-cyclic monophosphate sodium salt
Synonyms:
8-pCPT-cGMP;
   Request Quote
107607 8-(4-Chlorophenylthio)guanosine 3’-5’-cyclic monophosphothioate Sp-isomer sodium salt
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5104 4-Chlorophenylthiourea
250 mg $800   Add to Cart
1 g $1,900   Add to Cart
103477 4-ChlorophenyltriMethylsilane
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5078 3-Chloropicolinic Acid
Synonyms:
3-Chloropyridine-2-carboxylic acid;
5 mg $850   Add to Cart
50 mg $1,900   Add to Cart
103387 3-Chloropivalic chloride
Synonyms:
3-Chloro-2-2-dimethylpropionyl chloride;
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110045 Chloroprene Solution, 5000 µg/mL in P/T Methanol
Synonyms:
2-Chloro-1,3-butadiene; ?-Chloroprene; 2-Chloro-1,3-buatdiene; NSC 18589; Chloroprene; 1,3-Butadiene, 2-chloro-; 2- Chlorobutadiene;
1 ml $150   Add to Cart
109929 1-Chloropropane
1 ml $74   Add to Cart
103431 2-Chloropropionic acid
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103464 2-Chloropropionylglycine
2 g $364   Add to Cart
10 g $600   Add to Cart
103174 2’-Chloropropiophenone
500 mg $350   Add to Cart
2 g $550   Add to Cart
103483 γ-Chloropropyl trimethoxysilaNe
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108931 Chloropropylate
100 mg $136   Add to Cart
84292 Chloropyramine impurity
Synonyms:
Pyribenzamine;
   Request Quote
84293 Chloropyramine impurity
Synonyms:
p-Chlorobenzylaminopyridine;
   Request Quote
84294 Chloropyramine impurity
Synonyms:
p-Chlorobenzyl ether;
   Request Quote
84762 Chloropyrazine carboxamide
   Request Quote
103366 2-(6-Chloropyridazin-3-yl)sulfanyl-N
Synonyms:
Azintamide;
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108473 N-(6-Chloropyridin-3-yl)-3,4-difluorobenzamide
Synonyms:
ICA-27243;
5 mg $190   Add to Cart
103444 6-Chloropyridine-2-carbaldehyde
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5165 4-Chloropyridine-2-carbonyl Chloride HCl
Synonyms:
4-Chloro-2-pyridinecarbonyl Chloride Hydrochloride;
500 mg $950   Add to Cart
2 g $2,200   Add to Cart
103528 3-Chloropyridine-2-carboxaldehyde
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103173 3-Chloropyridine-4-boronic acid pinacol ester
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103468 2-Chloropyridine-5-boronic acid pinacol ester
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103151 4-Chloropyrimidine HCl
   Request Quote
103527 6-Chloroquinazolin-4-amine
250 mg $90   Add to Cart
1 g $290   Add to Cart
103507 4-Chloroquinazoline
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79094 Chloroquine dihydrochloride
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36504 Chloroquine Phosphate
500 mg $715   Add to Cart
36507 Chloroquine Related Compound D
15 mg $1,171   Add to Cart
36508 Chloroquine Related Compound E
15 mg $1,171   Add to Cart
36509 Chloroquine Related Compound G
15 mg $1,171   Add to Cart
36505 Chloroquine Sulfate
500 mg $715   Add to Cart
5003 5-Chloroquinoline
250 mg $900   Add to Cart
1 g $2,000   Add to Cart
103489 6-ChloroQuinoline
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5702 2-chloroquinoline-3-carbaldehyde
50 mg    Request Quote
5066 5-Chloroquinoline-8-sulfonic Acid
100 mg $900   Add to Cart
500 mg $1,950   Add to Cart
4919 3-Chlorosalicylaldehyde
1 g $1,900   Add to Cart
250 mg $850   Add to Cart
4947 3-Chlorosalicylic Acid
Synonyms:
3-Chloro-2-hydroxybenzoic Acid;
100 mg $850   Add to Cart
500 mg $1,900   Add to Cart
103194 2-Chlorosulfonyl methyl benzoate
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5007 5-(5-Chlorosulfonyl-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro -7H-pyrazolo[4,3-d]pyrimidin-7-one
250 mg $900   Add to Cart
1 g $2,000   Add to Cart
103531 2-Chlorotetrahydro-2H-pyran
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5164 Chlorothiazide
Synonyms:
(6-Chloro-7-sulfamyl-1,2,4-benzothiadiazine-1,1-dioxide; 6-Chloro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide; Chlorthiazide; Chlotride; Diuril; Saluric; Urinex);
250 mg $950   Add to Cart
1 g $2,200   Add to Cart
103118 2-Chlorothiazole
Synonyms:
2-Chloro-1-3-thiazole;
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103119 2-Chlorothiobenzamide
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103120 4-Chlorothiobenzamide
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103498 5-Chlorothiophene-2-sulfonamide
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108932 2-Chlorotoluene
500 mg $62   Add to Cart
103362 3-Chlorotrifluoromethylbenzene
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103101 8-Chloroxanthine
100 mg $190   Add to Cart
500 mg $290   Add to Cart
78545 Chloroxuron
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108933 Chloroxuron-N-monodesmethyl
Synonyms:
1-[4-(4-chlorophenoxy)phenyl]-3-methylurea;
10 mg $318   Add to Cart
36511 Chloroxylenol
125 mg $671   Add to Cart
36512 Chloroxylenol Related Compound A
25 mg $1,171   Add to Cart
103450 4’-Chloro[1-1’-biphenyl]-3-carbaldehyde
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103449 2’-Chloro[1-1’-biphenyl]-4-carbaldehyde
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77869 Chlorphenamine impurity A dimaleate
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77870 Chlorphenamine impurity B
Synonyms:
2,2’-Dipyridylamine;
1 mg $290   Add to Cart
5 mg $990   Add to Cart
D77872 Chlorphenamine Impurity D Maleate (Chlorpheniramine Impurity D Maleate)
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D78806 Chlorpheniramine impurity D maleate
Synonyms:
Chlorpheniramine nitrile;
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78802 Chlorpheniramine N-Oxide hydrochloride
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36514 Chlorpheniramine Related Compound C
10 mg $2,025   Add to Cart
36515 ChlorphenoxamineHCl
200 mg $715   Add to Cart
74221 Chlorphentermine HCl
10 mg $1,545   Add to Cart
25 mg $2,210   Add to Cart
108934 Chlorphoxim
100 mg $292   Add to Cart
103480 Chlorpromazine
1 g $290   Add to Cart
5097 Chlorpromazine HCl
Synonyms:
2-Chloro-10-(3-dimethylaminopropyl)phenothiazine hydrochloride; Largactil; CPZ;
10 g $800   Add to Cart
50 g $1,900   Add to Cart
78125 Chlorpromazine N-oxide
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108935 Chlorpropham
1 ml $44   Add to Cart
103382 Chlorprothixene
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4955 Chlorpyrifos
100 mg $850   Add to Cart
500 mg $1,900   Add to Cart
108936 Chlorpyrifos-methyl-oxon
25 mg $220   Add to Cart
103386 Chlorsulfuron
250 mg $355   Add to Cart
1 g $540   Add to Cart
4918 Chlortetracycline HCl
Synonyms:
Chlorotetracycline HCl;
250 mg $850   Add to Cart
1 g $1,900   Add to Cart
8480 4-epi-Chlortetracycline hydrochloride
Synonyms:
(4R,4aS,5aS,6S,12aS)-7-Chloro-4-(dimethylamino)-1,4,4a,5,5a,6,11, 12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2- naphthacenecarboxamide Monohydrate; 4-Epichlortetracycline Hydrochloride;
1 mg $290   Add to Cart
5 mg $890   Add to Cart
5015 Chlorthalidone
Synonyms:
(2-Chloro-5-(2,3-dihydro-1-hydroxy-3-oxo-1H-isoindol-1-yl)- benzenesulfonamide; 3-Hydroxy-3-[4-chloro-3-sulfamylphenyl]phthalimidine; Hygroton; Igroton; Phthalamudine; Zambesil; NSC 69200); Clortalidone;
5 mg $90   Add to Cart
25 mg $290   Add to Cart
78229 Chlorthalidone impurity A
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C78233 Chlorthalidone impurity C
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D78232 Chlorthalidone impurity D
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78230 Chlorthalidone impurity E
Synonyms:
3-Dehydroxy chlorthalidone;
10 mg $290   Add to Cart
50 mg $990   Add to Cart
78234 Chlorthalidone impurity F
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5014 Chlorthalidone Impurity G
Synonyms:
(3-(3,4-Dichlorophenyl)-3-hydroxy-phthalimidine);
2.5 mg $900   Add to Cart
10 mg $2,000   Add to Cart
78235 Chlorthalidone impurity H
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78231 Chlorthalidone impurity I
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36510 Chlorthalidone Related Compound A
10 mg $1,171   Add to Cart
78228 Chlorthalidone related compound A
Synonyms:
2-[3-(Aminosulfonyl)-4-chlorobenzoyl]-benzonic acid;
10 mg $190   Add to Cart
50 mg $590   Add to Cart
108937 Chlorthiamid
Synonyms:
SD 7961; Benzenecarbothioamide, 2,6-dichloro-; Chlorthiamid; 2,6- Dichlorothiobenzamide; Benzamide, 2,6-dichlorothio- (7CI,8CI); DCBN; Prefix; Prefix (chlorthiamid); Chlorthiamide;
1 ml $88   Add to Cart
108938 Chlorthion
25 mg $258   Add to Cart
108939 Chlorthiophos
Synonyms:
Phosphorothioic acid, O-[dichloro(methylthio)phenyl] O,O-diethyl ester; Chlorthiophos;
100 mg $132   Add to Cart
110194 Chlorthiophos sulfone 10 µg/mL in Cyclohexane
Synonyms:
Phosphorothioic acid, O-[2,5-dichloro-4-(methylsulfonyl)phenyl] O ,O-diethyl ester; Chlorthiophos I sulfone; Phenol, 2,5-dichloro-4 -(methylsulfonyl)-, O-ester with O,O-diethyl phosphorothioate (8CI);
1 ml $377   Add to Cart
108940 Chlozolinate
1 ml $130   Add to Cart
5126 3-(Cholamidopropyl)-1,1-dimethamine
Synonyms:
((3,5,7,12)-N-[3-(Dimethylamino)propyl]-3,7,12-trihydroxy-cholan- 24-amide);
1 g $700   Add to Cart
5 g $1,600   Add to Cart
78555 5-beta-Cholane
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78557 Cholane related compoumd 1
Synonyms:
5-α-Homopregnanic acid;
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91877 Cholanoic Acid
Synonyms:
5 β-Cholan-24-oic acid; 5 β-Cholanic acid; 5 β- Cholanoic acid; (5 β,17 β)-γ-Methyl-androstane-17- butanoic Acid; L 596205-0; NSC 18161; Ursocholanic Acid;
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78836 Cholecalciferol glucuronide
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78838 Cholecalciferol impurity A
Synonyms:
5,6-trans-Cholecalciferol, 5,6-trans-vitamin D3;
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