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
86547 Ethyl Tenofovir Impurity
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85964 Ethyl Tropic Acid
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84720 Ethyl Ximenynate ((11E)-11-Octadecen-9-ynoic acid ethyl ester)
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78966 (R)-7-Ethyl-10-Hydroxy Camptothecin
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5643 ethyl-1H-indole-2-carboxylate
50 mg    Request Quote
5651 ethyl-4-bromo-1H-indole-2-carboxylate
50 mg    Request Quote
5650 ethyl-4-chloro-1H-indole-2-carboxylate
50 mg    Request Quote
5652 ethyl-4-fluoro-1H-indole-2-carboxylate
50 mg    Request Quote
5654 ethyl-4-methyl-1H-indole-2-carboxylate
50 mg    Request Quote
5653 ethyl-4-nitro-1H-indole-2-carboxylate
50 mg    Request Quote
5646 ethyl-5-bromo-1H-indole-2-carboxylate
50 mg    Request Quote
5647 Ethyl-5-fluoro-1H-indole-2-carboxylate
Synonyms:
Ethyl 5-fluoroindole-2-carboxylate;
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5644 Ethyl-5-methyl-1H-indole-2-carboxylate
Synonyms:
Ethyl 5-methylindole-2-carboxylate; 5-Methylindole-2-carboxylic acid ethyl ester;
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5648 Ethyl-5-metoxy-1H-indole-2-carboxylate
Synonyms:
5-Methylindole-2-carboxylic acid ethyl ester; 2-Ethoxycarbonyl-5-methoxyindole; 2-Carbethoxy-5-methoxyindole; Ethyl 5-methoxyindole-2-carboxylate;
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5649 ethyl-5-nitro-1H-indole-2-carboxylate
50 mg    Request Quote
5656 ethyl-6-bromo-1H-indole-2-carboxylate
50 mg    Request Quote
5655 ethyl-6-chloro-1H-indole-2-carboxylate
50 mg    Request Quote
5657 ethyl-6-fluoro-1H-indole-2-carboxylate
50 mg    Request Quote
5658 ethyl-6-methyl-1H-indole-2-carboxylate
50 mg    Request Quote
5659 ethyl-6-nitro-1H-indole-2-carboxylate
50 mg    Request Quote
5645 ethyl-7-methyl-1H-indole-2-carboxylate
50 mg    Request Quote
36699 Ethylbenzene
0.5 mL/ampule $715   Add to Cart
34966 2-Ethylbenzofuran
Synonyms:
Benzbromarone impurity 6; Ethyl-2-benzofuran;
10 g $290   Add to Cart
50 g $990   Add to Cart
80138 Ethylcyclotene
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86071 Ethylene glycol distearate
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108732 Ethylene oxide
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83165 7-Ethylmethylamino sancycline
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80136 Ethynodiol Impurity (17-alfa-Ethinyl-17-beta-Acettoxy-3,5- Estradien Impurity)
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80135 Ethynodiol-17-Acetate
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80189 Ethynylestradiol Impurity 1
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80168 Ethynylestradiol Impurity M
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80430 Etifoxine
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80438 Etifoxine Metabolite
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D80222 Etilefrine Impurity D
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80223 Etilefrine Impurity F
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80133 Etiocholanolone
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79976 Etodolac Impurity 1
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79978 Etodolac Impurity A
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C79971 Etodolac Impurity C
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79972 Etodolac Impurity I
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79974 Etodolac Impurity J (Decarboxy Etodolac)
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79975 Etodolac Impurity K (rac-Etodolac Methyl Ester)
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O80194 Etofenamate O-Glucuronide
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80083 Etomidate EP Impurity A
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80084 Etomidate Impurity 1
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C80082 Etomidate Impurity C HCl
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80532 Etoposide Hydroxy Acid
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D80534 Etoposide Impurity D
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10186 Etoricoxib
Synonyms:
Arcoxia; 5-Chloro-2-(6-methylpyridin-3-yl)-3-(4-methylsulfonylphenyl) pyridine;
100 mg $290   Add to Cart
80454 Etoricoxib Impurity 13
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80456 Etoricoxib Impurity 14
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80457 Etoricoxib Impurity 15
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80458 Etoricoxib Impurity 16
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80459 Etoricoxib Impurity 17
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80460 Etoricoxib Impurity 18
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80461 Etoricoxib Impurity 19
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80462 Etoricoxib Impurity 20
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80463 Etoricoxib Impurity 21
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80464 Etoricoxib Impurity 22
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80465 Etoricoxib Impurity 23
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80469 Etoricoxib Impurity 3
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80470 Etoricoxib Impurity 4
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80448 Etoricoxib Impurity 5 Lithium Salt
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80449 Etoricoxib Impurity 6
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80450 Etoricoxib Impurity 8
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80451 Etoricoxib Impurity 9
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D80471 Etoricoxib Impurity D
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36701 Etoricoxib Related Compound B
Synonyms:
Etoricoxib Impurity 5;
50 mg $1,171   Add to Cart
80313 Etravirine Impurity 1
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80314 Etravirine Impurity 2
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80315 Etravirine Impurity 3
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80316 Etravirine Impurity 4
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80312 Etravirine Impurity 5
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36703 Eucalyptus Oil
1 g $715   Add to Cart
36704 Eugenol
500 mg $715   Add to Cart
36705 Evening Primrose Oil
1 g $715   Add to Cart
80211 Everninic Acid
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O80233 Everolimus 27-O-Desmethyl Impurity
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80234 Everolimus 28-Ethylhydroxy Impurity
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80228 Everolimus Dehydrate Impurity
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80213 Everolimus Hydrolized Impurity
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O80230 Everolimus O-Desmethyl Impurity (Mixture of Diastereomers)
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O80232 Everolimus O-Ethyl Impurity
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O80214 Everolimus O-Silyl Impurity
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80215 Everolimus Related Compound 4
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80216 Everolimus Related Compound 5
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5444 Evodiamine
250 g $650   Add to Cart
80206 Evogliptin Tartrate
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80207 Evogliptin Tartrate Impurity S1
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80208 Evogliptin Tartrate Impurity S2
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80209 Evogliptin Tartrate Impurity S3
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80291 Exemestane Impurity 4
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80298 Exemestane Metabolite 2
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80283 Exemestane Related Compound 1
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80284 Exemestane Related Compound 2
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80285 Exemestane Related Compound 2 (17-α isomer)
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80286 Exemestane Related Compound 2 (17-beta isomer)
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36706 Exemestane Related Compound A
15 mg $1,171   Add to Cart
36707 Exemestane Related Compound B
Synonyms:
Exemestane Related Compound 2;
15 mg $1,171   Add to Cart
36708 Exemestane Related Compound C CIII
15 mg $1,171   Add to Cart
36709 Exemestane System Suitability Mixture
25 mg $1,171   Add to Cart
80002 Ezetimibe (3R,4R,3’S)-Isomer
Synonyms:
3’S,3R,4R)-Ezetimbe; (3R,4R)-1-(4-fluorophenyl)-3-[(3S)-3-(4-fluorophenyl)-3- hydroxypropyl]-4-(4-hydroxyphenyl)-2-Azetidinone;;
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79989 Ezetimibe (3S,4R,3’S)-Isomer
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80003 Ezetimibe (3S,4S,3’R)-Isomer
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80004 Ezetimibe 2-Fluoro Impurity
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80005 Ezetimibe 3-Fluoro Impurity
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80006 Ezetimibe Aniline Impurity
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79985 Ezetimibe Azetidinone Ring-opened Impurity
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80010 Ezetimibe Benzyl Impurity (MBZT-2)
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O79991 Ezetimibe Deprotected Impurity ((S)-3-(2R, 5S)-5-(4-Fluorophenyl) -2-[(S)-(4-Fluorophenylamino)-(4-OH-phenyl)methyl]-5-O
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80007 Ezetimibe Desfluoro Chloro Impurity
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80026 (R)-Ezetimibe Desfluoro Chloro Impurity
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80023 Ezetimibe Desfluoro Dehydoxy Impurity
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80008 Ezetimibe Desfluoro Methyl Impurity
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79988 Ezetimibe Fluoro Isomer
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80009 Ezetimibe Impurity 46
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36714 Famciclovir Related Compound A
20 mg $1,171   Add to Cart
36715 Famciclovir Related Compound B
20 mg $1,171   Add to Cart
36716 Famciclovir Related Compound C
20 mg $1,171   Add to Cart
36711 Famciclovir Related Compound E
25 mg $1,171   Add to Cart
36712 Famciclovir Related Compound F
25 mg $1,171   Add to Cart
36713 Famciclovir System Suitability Mixture
20 mg $1,171   Add to Cart
36710 FAME Standard Mixture
100 mg $715   Add to Cart
36717 Famotidine Related Compound C
25 mg $1,171   Add to Cart
36718 Famotidine Related Compound D
25 mg $1,171   Add to Cart
36719 Famotidine Related Compound E
25 mg $1,171   Add to Cart
81092 Fampridine Impurity 3 ( N-(4-Pyridyl)-2-Hydroxybutyramide)
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81094 Fampridine N-Oxide HCl (4-Aminopyridine N-Oxide HCl)
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CN81064 Fapyguanine-13C-15N3
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79412 Farnesyl Diphosphate(FPP) Trisammonium Salt
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D75920 Farnesyl Diphosphate-d6
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81160 Fasudil Impurity 3
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81162 Fasudil N-Hydroxy Impurity
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F5341 FDG Purification Kit (Pharmaceutical grade)
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F5340 FDG Reagent Kit (Pharmaceutical grade)
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81062 Febuxostat Impurity (2,2’-(4-isobutoxy-1,3-phenylene)bis(4- methylthiazole-5-carboxylic acid))
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5445 Fenamic Acid
Synonyms:
N-Phenylanthranilic acid; 2-(Phenylamino)benzoic acid; Diphenylamin-2-carboxylic acid; DPC;
0.1 g $650   Add to Cart
1 g $1,500   Add to Cart
80752 Fenfluthrin
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81077 Fenoterol Sulfate
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80945 Fenoxazoline
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80790 Fenprotalene
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80658 Fenretinide Glucuronide
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80951 Fenspiride
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C81154 Fenticonazole Impurity C Nitrate
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46210 (S)-Fesoterodine fumarate
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46212 Fesoterodine fumarate
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81024 (S)-Fesoterodine hydrochloride
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36730 Fetal Bovine Serum
10 mL $1,171   Add to Cart
36725 Fexofenadine Related Compound A
25 mg $1,171   Add to Cart
36726 Fexofenadine Related Compound B
25 mg $1,171   Add to Cart