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
78788 Cephalexin impurity J
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78789 Cephalexin impurity K
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78798 Cephalexin phenylglycin
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78792 Cephalexin related compound
Synonyms:
[6R-[6α,7β(R)]]-7-[(Aminophenylacetyl)amino]-3-methylene-8- oxo-5-thia-1-azabicyclo[4.2.0]octane-2-carboxylic acid sodium salt;
1 mg $390   Add to Cart
5 mg $1,290   Add to Cart
36498 Cephalexin Related Compound D
25 mg $1,171   Add to Cart
36499 Cephalexin Related Compound F
25 mg $1,171   Add to Cart
77946 Cephalosporin lactone impurity
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44355 Cephalothin
Synonyms:
Cefalonium impurity A;
1 g $90   Add to Cart
5 g $290   Add to Cart
36500 Cephapirin Benzathine
100 mg $715   Add to Cart
36501 Cephapirin Sodium
500 mg $715   Add to Cart
5409 Cepharanthine
0.1 g    Request Quote
17835 Cephradine
Synonyms:
Cefradine;
1 g $390   Add to Cart
68559 Cephradine sulfoxide
Synonyms:
Cefradine sulfoxide;
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103518 Cerium(III) acetate sesquihydrate
500 g $790   Add to Cart
8217 Cerivastatin sodium salt
Synonyms:
Rivastatin, Baycol, Lipobay;
5 mg $290   Add to Cart
25 mg $890   Add to Cart
4975 Cerpegin
Synonyms:
(1,1-Dimethylfuro[3,4-C]pyridine-3,4(1H,5H)-dione);
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78527 Cetilistat impurity 1
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78528 Cetilistat impurity 2
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78529 Cetilistat impurity 3
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78530 Cetilistat impurity 4
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78524 Cetilistat impurity B
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78525 Cetilistat impurity C
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D78526 Cetilistat impurity D
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78551 Cetirizine 3-chloro impurity
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8224 Cetirizine Amide dihydrochloride
Synonyms:
(RS)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy] acetamide Dihydrochloride; Cetirizine impurity 8 dihydrochloride;
1 mg $290   Add to Cart
5 mg $990   Add to Cart
4936 Cetirizine DiHCl
Synonyms:
([2-[4-[(4-Chlorophenyl)-phenylmethyl]-1-piperazinyl]ethoxy] acetic Acid, Dihydrochloride);
10 mg $850   Add to Cart
50 mg $1,900   Add to Cart
103275 (R)-Cetirizine dihydrochloride
Synonyms:
Levocetirizine dihydrochloride;
1 g $190   Add to Cart
5 g $608   Add to Cart
78549 Cetirizine glycerol ester impurity hydrochloride
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78536 Cetirizine impurity 6
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78537 Cetirizine impurity 7
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78570 Cetirizine impurity B
Synonyms:
De(carboxymethoxy) cetirizine acetic acid;
   Request Quote
78532 Cetirizine impurity C
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D78546 Cetirizine impurity D
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D78554 Cetirizine Impurity D dihydrochloride
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78534 Cetirizine impurity E sodium salt
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78561 Cetirizine impurity Y
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78540 Cetirizine lactose ester
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8225 Cetirizine methyl ester
Synonyms:
Methyl 2-[2-[4-[(4-Chlorophenyl)phenylmethyl]-1-piperazinyl] ethoxy]acetate; [2-[4-[(4-Chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]-Acetic Acid Methyl Ester;
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78559 Cetirizine N,N-Dioxide dihydrochloride
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5012 Cetirizine N-Oxide (Mixture of diastereomers)
Synonyms:
[2-[4-(4-Chlorophenyl)phenylmethyl]-1-oxido-1-piperazinyl]ethoxy] -acetic Acid;
1 mg $900   Add to Cart
5 mg $2,000   Add to Cart
78552 (R)-Cetirizine N-Oxide DiHCl
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78553 Cetirizine N-oxide dihydrochloride
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78558 (R)-Cetirizine Polyethylene Glycol Ester
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78548 Cetirizine propanediol ester impurity
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78547 Cetirizine related compound
Synonyms:
4-Benzhydryl-1-piperazineethanol dihydrochloride;
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D78550 Cetirizine related compound D
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78560 Cetirizine sorbitol ester impurity hydrochloride
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D75849 Cetirizine-d4
   Request Quote
D78567 Cetirizine-d8
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5037 Cetraxate HCl
Synonyms:
DV-1006, Neurer;
10 g $850   Add to Cart
50 g $1,800   Add to Cart
78253 Cetrimide
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108886 Cetylpyridinium chloride monohydrate
Synonyms:
N-Cetylpyridinium chloride monohydrate; 1-hexadecylpyridinium chloride; Pyridinium, 1-hexadecyl-, chloride, monohydrate (8CI, 9CI); Cetylpyridinium chloride; N-Hexadecylpyridinium chloride monohydrate; Pyridinium, 1-hexadecyl-, chloride, hydrate (1:1:1); ...;
250 mg $98   Add to Cart
77855 Cevimeline N, S-dioxide
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77856 Cevimeline N-β-D-glucuronide
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108887 Chinomethionat
1 ml $30   Add to Cart
108053 Chitobiose 2HCl
Synonyms:
4-O-(b-D-Glucosamine)-D-glucosamine;
5 mg $190   Add to Cart
25 mg $608   Add to Cart
108056 Chitohexaose 6HCl
Synonyms:
Chitosan hexamer;
1 mg $199   Add to Cart
5 mg $608   Add to Cart
108058 Chitotetraose 4HCl
Synonyms:
Chitosan tetramer;
5 mg $190   Add to Cart
25 mg $608   Add to Cart
5146 Chitotetraose Tetradecaacetate
10 mg $900   Add to Cart
50 mg $2,200   Add to Cart
108059 Chitotriose 3HCl
Synonyms:
Chitosan trimer;
5 mg $290   Add to Cart
25 mg $928   Add to Cart
4930 Chitotriose Undecaacetate
Synonyms:
(O-3,4,6-Tri-O-acetyl-2-(acetylamino)-2-deoxy-b-D-glucopyranosyl- (1-4)-O-3,6-di-O-acetyl-2-(acetylamino)-2-deoxy-b-D- glucopyranosyl-(1-4)-2-(acetylamino)-2-deoxy-1,3,6-triacetate-a-D -glucopyranose; Tri-N-acetyl Chitotriose Octaacetate);
10 mg $850   Add to Cart
50 mg $1,900   Add to Cart
110061 Chlomethoxyfen 10 µg/mL in Acetonitrile
108729 4-Chlor-2-cyano-5-(4-methylphenyl)imidazol
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106513 α-Chloralose
Synonyms:
a-D-Glucochloralose;
100 g $90   Add to Cart
500 g $288   Add to Cart
108888 ?-Chloralose
50 mg $146   Add to Cart
108889 Chloramben
100 mg $114   Add to Cart
108890 Chloramben methyl ester
10 mg $449   Add to Cart
78902 Chlorambucil impurity 1
Synonyms:
meta-Chlorambucil;
   Request Quote
78905 Chlorambucil impurity A
Synonyms:
N-(2-Hydroxyethyl) chlorambucil;
   Request Quote
78906 Chlorambucil impurity B
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78907 Chlorambucil impurity C
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D78908 Chlorambucil impurity D
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78899 Chlorambucil impurity E
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78900 Chlorambucil impurity F
   Request Quote
78901 Chlorambucil impurity G
   Request Quote
78568 Chloramine T
Synonyms:
Tosyl chloramide sodium salt;
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O106499 Chloramphenicol 1-O-β-D-galactopyranoside
Synonyms:
D-(-)-threo-2-Dichloroacetamido-3-b-D-galactopyranosyl-1-(p- nitrophenyl)-1-3-propaneodiol);
1 mg $290   Add to Cart
5 mg $928   Add to Cart
D108678 Chloramphenicol-d5
Synonyms:
D-(-)-threo-2-Dichloroacetamido-1-(4-nitrophenyl)-1,3-propanediol | 2,2-dichloro-N-[1,3-dihydroxy-1-(4-nitrophenyl)propan-2-yl] acetamide;
10 mg $1,791   Add to Cart
110062 Chloraniformethan 10 µg/mL in Acetone
108891 Chloranocryl
250 mg $152   Add to Cart
108892 Chlorbenside
100 mg $140   Add to Cart
108893 Chlorbenside sulfone
10 mg $410   Add to Cart
108894 Chlorbicyclen
250 mg $180   Add to Cart
108895 Chlorbromuron
1 ml $44   Add to Cart
108896 Chlordecone
Synonyms:
1,1a,3,3a,4,5,5,5a,5b,6-Decachlorooctahydro-1,3,4-metheno-2H- cyclobuta[cd]pentalen-2-one hydrate, Kepone hydrate; Chlordecone Hydrate;
0.1 g $140   Add to Cart
110190 Chlordecone-5b-hydro 10 µg/mL in Cyclohexane
Synonyms:
Chlordecone-5b-hydro; 1,1a,3,3a,4,5,5,5a,5b-Nonachlorooctahydro-1 ,3,4-metheno-2H-cyclobuta[cd]pentalen-2-one; Hydrochlordecone;
1 ml $420   Add to Cart
110191 cis-Chlordene 10 µg/mL in Isooctane
Synonyms:
1,4-Ethenopentalene, 1,2,3,5,7,8-hexachloro-1,3a,4,5,6,6a- hexahydro-, (1?,3a?,4?,5?,6a?)-; rel-(1R,3aS,4S,5S,6aS)-1,2,3,5,7 ,8-Hexachloro-1,3a,4,5,6,6a-hexahydro-1,4-ethenopentalene; ?- Chlordene;
1 ml $430   Add to Cart
108897 Chlordimeform HCl
100 mg $74   Add to Cart
108898 Chlorfenprop-methyl
100 mg $136   Add to Cart
108899 Chlorfenson
100 mg $136   Add to Cart
110192 cis-Chlorfenvinphos 10 µg/mL in Cyclohexane
1 ml $369   Add to Cart
108900 Chlorflurenol
100 mg $252   Add to Cart
108901 Chlorflurenol-methyl ester
250 mg $160   Add to Cart
5345 Chlorguanide
Synonyms:
Proguanil;
25 mg $1,750   Add to Cart
103278 Chlorguanide hydrochloride
Synonyms:
Bigumal;
10 mg $290   Add to Cart
50 mg $928   Add to Cart
78225 Chlorhexidine digluconate
1 g $190   Add to Cart
5 g $590   Add to Cart
4915 Chlorhexidine DiHCl
1 g $850   Add to Cart
5 g $1,900   Add to Cart
78227 Chlorhexidine EP impurity K
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78226 Chlorhexidine impurity B
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110063 iso-Chloridazon 10 µg/mL in Ethylacetate
Synonyms:
Isochloridazon;
78516 Chloridazon impurity 1
Synonyms:
Desphenyl chloridazon;
5 mg $190   Add to Cart
25 mg $590   Add to Cart
D110245 Chloridazon-d5 100 µg/mL in Acetonitrile
Synonyms:
Chloridazon D5 (phenyl D5);
1.1 ml $256   Add to Cart
103419 Chlorimuron-ethyl
250 mg $90   Add to Cart
1 g $288   Add to Cart
108902 Chlormephos
100 mg $178   Add to Cart
108903 Chlornitrofen
100 mg $526   Add to Cart
110246 Chlornitrofen-amino 10 µg/mL in Cyclohexane
1 ml $456   Add to Cart
44426 4’-Chloro clomiphene citrate
5 mg $190   Add to Cart
25 mg $590   Add to Cart
79045 3-Chloro clomiphene citrate
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77842 5-Chloro Descyano Citalopram Oxalate
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86929 3-Chloro tirofiban
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4984 2-Chloro(methylphenyl)phenylmethoxy Ethane Ether
Synonyms:
1-[(2-Chloroethoxy)phenylmethyl]-2-methylbenzene;
5 g $2,000   Add to Cart
1 g $900   Add to Cart
5053 p-(2-Chloro)ethyl Anisole
1 g $850   Add to Cart
5 g $1,900   Add to Cart
110252 2-Chloro-1,1,1-trifluoroethane 100 µg/mL in Methanol
1 ml $30   Add to Cart
110247 1-Chloro-1,1-difluoroethane 100 µg/mL in Methanol
Synonyms:
?-Chloroethylidene fluoride; R 142b; FC 142b; Genetron 101; CFC 142b; HFA 142b; 1,1-Difluoro-1-chloroethane; Propellant 142B; 1- Chloro-1,1-difluoroethane; Freon 142b; Genetron 142b; Solkane 142b; F 142b; HCFC 142b; Dymel 142; Fron 142b; Ethane, 1-chloro- ...;
5 x ml $180   Add to Cart
108930 3-Chloro-1,2-propanediol
Synonyms:
3-Chloropropane-1,2-diol;
250 mg $80   Add to Cart
5127 2-Chloro-1,3,2-dioxaphospholane
10 g $700   Add to Cart
50 g $1,600   Add to Cart
107595 5-Chloro-1-(b-D-arabinofuranosyl)cytidine
Synonyms:
5-Chloro-1-(b-D-arabinofuranosyl)-D-cytidine;
25 mg $790   Add to Cart
100 mg $2,528   Add to Cart
103476 (4’-Chloro-1-1’-biphenyl-3-yl)MethanaMine hydrochloride
100 mg $190   Add to Cart
500 mg $608   Add to Cart
103050 4-Chloro-1-2-phenylenediamine
10 g $90   Add to Cart
50 g $288   Add to Cart
103148 1-(6-Chloro-1-3-benzothiazol-2-yl)hydrazine
5 g $950   Add to Cart
103587 7-Chloro-1-3-dihydro-1-methyl-5-phenyl-2H-1-4-benzodiazepine-2- thione
Synonyms:
Sulazepam;
5 mg $90   Add to Cart
25 mg $288   Add to Cart
103077 6-Chloro-1-3-dimethyluracil
50 g $90   Add to Cart
250 g $288   Add to Cart
103347 4-Chloro-1-3-dioxolan-2-one
5 g $90   Add to Cart
25 g $288   Add to Cart
106497 1-Chloro-1-deoxy-D-fructose
250 mg $190   Add to Cart
1 g $608   Add to Cart
77809 6-Chloro-1-Ethyl-4-Oxo-7-(Piperazin-1-yl)-1,4-Dihydroquinoline-3- Carboxylic acid
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103207 4-(Chloro-1-isopropyl-1H-pyrrolo[2-3-c]pyridin-3-yl)pyrimidin-2- amine
50 mg $190   Add to Cart
250 mg $608   Add to Cart
4983 5-Chloro-1-methyl-4-nitroimidazole
1 g $900   Add to Cart
5 g $2,000   Add to Cart
5116 2-Chloro-1-methyl-6-phenylimidazo[4,5-β]pyridine
10 mg $750   Add to Cart
50 mg $1,800   Add to Cart
5024 5-Chloro-1-methylimidazole
Synonyms:
(5-Chloro-1-methyl-1H-imidazole; 1-Methyl-5-chloroimidazole);
2 g $900   Add to Cart
10 g $2,000   Add to Cart
103424 5-Chloro-1-methylimidazole nitrate
2 g $190   Add to Cart
10 g $608   Add to Cart
101380 4-Chloro-1-naphthol
Synonyms:
1-Chloro-4-hydroxynaphthalene;
25 g $60   Add to Cart
100 g $165   Add to Cart
5149 8-Chloro-1-octanol
Synonyms:
(8-Chloro-octan-1-ol; 8-Chlor-octan-1-ol);
10 ml $950   Add to Cart
50 ml $2,200   Add to Cart
4945 (R)-3-Chloro-1-phenyl-1-[2-methyl-phenoxyl]propane
500 mg $1,900   Add to Cart
100 mg $850   Add to Cart
101387 6-Chloro-1H-indol-3-yl hexadecanoate
Synonyms:
Salmon-pal;
10 mg $390   Add to Cart
101386 6-Chloro-1H-indol-3-yl octanoate
1 g $490   Add to Cart
5 g $1,568   Add to Cart
101389 6-Chloro-1H-indol-3-yl β-D-glucuronide
5 mg $190   Add to Cart
25 mg $608   Add to Cart
5664 5-chloro-1H-indole-2-carboxylic acid
50 mg    Request Quote
5669 4-chloro-1H-indole-2-carboxylic acid
50 mg    Request Quote
5674 6-chloro-1H-indole-2-carboxylic acid
50 mg    Request Quote
103146 4-Chloro-1H-pyrazole-3-carboxylic acid
250 mg $190   Add to Cart
1 g $608   Add to Cart
5148 4-Chloro-1H-pyrazolo[3,4-d]pyrimidine
Synonyms:
4-Chloropyrazolo[3,4-d]pyrimidine;
250 mg $950   Add to Cart
1 g $2,200   Add to Cart
103562 5-Chloro-1H-pyrrolo[2-3-c]pyridine
50 mg $190   Add to Cart
250 mg $608   Add to Cart
5038 2-Chloro-2’,3’-O-isopropylideneadenosine-5’-N-ethylcarboxamide
10 mg $850   Add to Cart
50 mg $1,800   Add to Cart
107572 8-Chloro-2’-deoxyadenosine
Synonyms:
8-Chloro-2’-deoxy-D-adenosine;
1 mg $290   Add to Cart
5 mg $928   Add to Cart
107601 5-Chloro-2’-deoxycytidine
Synonyms:
5-Chloro-2’-deoxy-D-cytidine;
5 mg $290   Add to Cart
25 mg $928   Add to Cart
107591 8-Chloro-2’-deoxyguanosine
Synonyms:
8-Chloro-2’-deoxy-D-guanosine;
1 mg $390   Add to Cart
5 mg $1,248   Add to Cart
4961 5-Chloro-2’-deoxyuridine
5 mg $850   Add to Cart
25 mg $1,900   Add to Cart
107574 2’-Chloro-2’-deoxyuridine
100 mg $190   Add to Cart
500 mg $608   Add to Cart
103143 4’-Chloro-2’-hydroxyacetophenone
5 g $190   Add to Cart
25 g $608   Add to Cart
4981 2-Chloro-2,2-dimethyl-2H-1,3-benzoxazine
1 g $900   Add to Cart
5 g $2,000   Add to Cart