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
5046 3-Carboxy-4-chlorobenzenesulfonamide
100 mg $850   Add to Cart
500 mg $1,800   Add to Cart
103426 2-Chlorobenzenesulfonamide
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103485 3-Chlorobenzenesulfonyl chloride
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103342 4-Chlorobenzhydrazide
10 g $372   Add to Cart
103376 2-Chlorobenzhydrazide
10 g $387   Add to Cart
50 g $623   Add to Cart
103060 2-Chlorobenzimidazole
50 g $400   Add to Cart
250 g $550   Add to Cart
103169 5-Chlorobenzimidazole
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55576 3-Chlorobenzoic acid
Synonyms:
Bupropion impurity;
1 g $90   Add to Cart
5 g $290   Add to Cart
103214 3-Chlorobenzonitrile
Synonyms:
3-Chlorophenyl cyanide;
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103411 4-Chlorobenzonitrile
100 g $350   Add to Cart
500 g $595   Add to Cart
55562 4-Chlorobenzophenone
Synonyms:
Cetirizine impurity;
1 g $90   Add to Cart
5 g $290   Add to Cart
103397 3-Chlorobenzophenone
25 g $350   Add to Cart
100 g $520   Add to Cart
103420 4-(4-Chlorobenzoyl)piperidine
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103442 3-Chlorobenzyl alcohol
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103187 4-Chlorobenzyl bromide
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103370 3-Chlorobenzylamine
25 g $350   Add to Cart
100 g $580   Add to Cart
103575 4’-Chlorobiphenyl-3-carboxylic acid
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103350 Chlorobis(ethylene)rhodium(I)dimer
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4986 5-(4-Chlorobutyl)-1-cyclohexyltetrazole
Synonyms:
(5-(4-Chloro-butyl)-1-cyclohexyl-1H-tetrazole);
5 g $2,000   Add to Cart
1 g $900   Add to Cart
4969 4-Chlorobutyraldehyde Diethyl Acetal
Synonyms:
4-Chloro-1,1-dethoxybutane;
2.5 g $850   Add to Cart
10 g $1,900   Add to Cart
103104 2-Chlorobutyramide
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5150 4-Chlorobutyronitrile
250 g $950   Add to Cart
103051 Chlorocarbonyl sulphenyl chloride
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5060 Chlorocitalopram
Synonyms:
1-(4-Chloro-phenyl)-1-((3-dimethylamino-propyl)-1,3-dihydro- isobenzofuran-5-carbonitrile;
1 mg $850   Add to Cart
5 mg $1,900   Add to Cart
4965 Chlorocitalopram Hydrobromide
Synonyms:
(1-(4-Chlorophenyl)-1-[3-(dimethylamino)propyl)-1,3-dihydro-5- isobenzofuran-5-carbonitrile, Hydrobromide);
1 mg $850   Add to Cart
5 mg $1,900   Add to Cart
103368 1-Chloroctadecane
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D86157 Chlorodenafil-d5
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55647 5-Chlorodescyano Citalopram HBr
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103327 Chlorodiphenylphosphine
25 g $374   Add to Cart
100 g $568   Add to Cart
103354 2-(2-Chloroethoxy)benzene sulfonamide
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5569 3-(2-Chloroethyl)-2-Methyl-6,7,8,9-tetrahydro-4H-pyrimidine-4-one
0.1 g $750   Add to Cart
0.25 g $1,500   Add to Cart
55705 4-(6-(2-Chloroethyl)-3-methyl-3,6,7,8-tetrahydroimidazo[4’,5’:5,6 ]benzo[1,2-β][1,4]thiazin-2-yl)butanoic Acid
Synonyms:
Bendamustine Impurity D; Bendamustine Thiazine Impurity;
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5010 3-(2-Chloroethyl)-7-methoxy-2-methyl-4H-pyrido[1,2-α] pyrimidin-4-one
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5065 2-(1-Chloroethyl)-anthracene
50 mg $900   Add to Cart
250 mg $1,950   Add to Cart
103196 1-(2-Chloroethyl)pyrazole
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106491 2-Chloroethyl-β-D-fructopyranoside
1 g $290   Add to Cart
5 g $890   Add to Cart
103530 4-Chlorofuro[3-2-c]pyridine
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103100 8-Chloroguanine
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107592 8-Chloroguanosine
Synonyms:
8-Chloro-D-guanosine;
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103164 6-Chloroimidazo [1.2-α] pyrimidine
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5139 6-Chloroimidazo[1,2-β]pyridazine-2-carboxylic Acid
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5032 6-Chloroindole
Synonyms:
6-Chloro-1H-indole;
5 g $900   Add to Cart
25 g $2,000   Add to Cart
5089 4-Chloroindole
Synonyms:
(4-Chloro-1H-indole; NSC 88141);
1 g $800   Add to Cart
5 g $1,900   Add to Cart
4923 8-Chloroinosine
Synonyms:
(8-Chloro-inosine; 8-Cl-I);
250 mg $850   Add to Cart
1 g $1,900   Add to Cart
5067 2-Chloroinosine
100 mg $900   Add to Cart
500 mg $1,950   Add to Cart
103152 Chloroiodomethane - stabilised with copper
25 g $90   Add to Cart
100 g $290   Add to Cart
103421 4-Chloroisatin
25 g $408   Add to Cart
100 g $675   Add to Cart
5069 5-Chloroisoquinoline
250 mg $900   Add to Cart
1 g $1,950   Add to Cart
103332 4-Chloromandelic acid
50 g $365   Add to Cart
250 g $640   Add to Cart
4908 4-Chloromercuribenzoic Acid
1 g $850   Add to Cart
5 g $1,900   Add to Cart
5074 5-Chloromethyl 6,9-Difluoro-11-hydroxy-16-methyl-3-oxo-17- (propionyloxy)-androsta-1,4-diene-17-carbothioate
10 mg $800   Add to Cart
50 mg $1,900   Add to Cart
103053 p-Chloromethyl Benzoic acid
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79388 Chloromethyl dodecanoate
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103206 Chloromethyl trimethylsilane
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103201 4-(Chloromethyl)-1-3-dioxolan-2-one
10 mg $350   Add to Cart
50 mg $550   Add to Cart
4929 4-(Chloromethyl)-2-isopropyl]-4-thiazolyl HCl salt
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103234 2-(Chloromethyl)-2-methyloxirane
Synonyms:
2-Methylepichlorohydrin;
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103409 2-(Chloromethyl)-3-4-dimethoxypyridine hydrochloride
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103340 2-(Chloromethyl)benzoic acid
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103398 4-(Chloromethyl)benzonitrile
5 g $373   Add to Cart
25 g $585   Add to Cart
103356 3-(Chloromethyl)benzoyl chloride
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103208 2-(Chloromethyl)pyrimidine HCl
1 g $387   Add to Cart
5 g $665   Add to Cart
4957 4-Chloromethyl-1H-imidazole HCl
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103348 5-Chloromethyl-1H-tetrazole
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5030 4-Chloromethyl-2-methyl-1,3-thiazole HCl
Synonyms:
4-(Chloromethyl)-2-methythiazole Hydrochloride;
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5016 5-Chloromethyl-2-oxazolidinone
100 mg $2,000   Add to Cart
25 mg $900   Add to Cart
4995 2-Chloromethyl-3,4-dimethoxypyridine-N-oxide
500 mg $2,000   Add to Cart
100 mg $900   Add to Cart
103122 4-Chloromethyl-3-5-dimethylisoxazole
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101376 4-Chloromethyl-6-8-difluoroumbelliferyl β-D- galactopyranoside
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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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5410 Chlorophenamine Maleate
1 g $550   Add to Cart
5 g $1,500   Add to Cart
103438 2-Chlorophenol
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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
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
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
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
   Request Quote
103579 2-(4-Chlorophenyl)-Quinoline-4-carboxylic acid
   Request Quote
103351 (4-Chlorophenyl)acetic acid hydrazide
   Request Quote
55914 cis-4-(4-Chlorophenyl)cyclohexanecarboxylic acid
Synonyms:
Atovaquone related compound 1;
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103422 (S)-1-(4-Chlorophenyl)ethylamine
   Request Quote
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;
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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
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;
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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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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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84292 Chloropyramine impurity
Synonyms:
Pyribenzamine;
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84293 Chloropyramine impurity
Synonyms:
p-Chlorobenzylaminopyridine;
   Request Quote
84294 Chloropyramine impurity
Synonyms:
p-Chlorobenzyl ether;
   Request Quote
84762 Chloropyrazine carboxamide
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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
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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