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
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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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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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
F5341 FDG Purification Kit (Pharmaceutical grade)
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F5340 FDG Reagent Kit (Pharmaceutical grade)
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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
80951 Fenspiride
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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
36729 Fexofenadine Related Compound C
15 mg $1,171   Add to Cart
36724 FexofenadineHCl
200 mg $715   Add to Cart
36728 Filgrastim
0.98 mg $1,102   Add to Cart
80968 Fingolimod Methyl Impurity
1 mg $490   Add to Cart
36727 Fish Oil
1 g $715   Add to Cart
87192 19-EpiFK-506
Synonyms:
Tacrolimus Impurity;
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36733 Flavoxate Related Compound B
20 mg $1,171   Add to Cart
36734 Flavoxate Related Compound C
20 mg $1,171   Add to Cart
36731 FlavoxateHCl
200 mg $715   Add to Cart
36735 Flax Seed Oil
1 g $715   Add to Cart
36736 Flecainide Acetate
200 mg $715   Add to Cart
36737 Flecainide Related Compound A
75 mg $1,171   Add to Cart
5447 Floxuridine
0.1 g $890   Add to Cart
1 g $1,750   Add to Cart
36738 Fluoride Dentifrice: Sodium Fluoride/SodiumBicarbonate Powder
4 oz $1,171   Add to Cart
36739 Fluoride Dentifrice: Sodium Monofluoropho-sphate-Calcium Carbonate
4.6 oz $1,171   Add to Cart
36740 Fluoride Dentifrice: Sodium Monofluoropho-sphate/Dicalcium Phosphate
4.6 oz $1,171   Add to Cart
82359 11-Fluoro desloratadine hydrochloride
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82371 12-Fluoro dihydroloratadine
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5666 5-fluoro-1H-indole-2-carboxylic acid
50 mg    Request Quote
5671 4-fluoro-1H-indole-2-carboxylic acid
50 mg    Request Quote
5675 6-fluoro-1H-indole-2-carboxylic acid
50 mg    Request Quote
5640 5-fluoro-2-phenyl-1H-indole
50 mg    Request Quote
5570 6-Fluoro-3-(4-Piperidinyl)-1,2-Benzisoxazole HCl
0.25 g $1,500   Add to Cart
0.1 g $750   Add to Cart
87269 6-beta-Fluoro-triamcinolone-acetonide acetate
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36741 Fluorometholone Related Compound A
Synonyms:
Deltamedrane; 11,17-Dihydroxy-6-methyl-(6α,11β)-pregna-1,4-diene-3,20- dione; 11β,17-Dihydroxy-6α-methyl-pregna-1,4-diene-3,20-dione; 11β,17α-Dihydroxy-6α-methylpregna-1,4-diene-3,20- dione; NSC 125051;
5 mg $490   Add to Cart
25 mg $1,290   Add to Cart
5635 2-(4-fluorophenyl)-1H-indole
50 mg    Request Quote
58122 2-(4-Fluorophenyl)-thiophene
Synonyms:
Canagliflozin related impurity 14;
1 g $890   Add to Cart
5 g $2,890   Add to Cart
84641 (5R)-5-(4-[[(2-Fluorophenyl)methyl]oxy]phenyl)-L-prolinamide
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36743 Fluorouracil
250 mg $715   Add to Cart
36744 Fluorouracil Related Compound A
25 mg $1,171   Add to Cart
36745 Fluorouracil Related Compound B
25 mg $1,171   Add to Cart
36746 Fluorouracil Related Compound E
25 mg $1,171   Add to Cart
36747 Fluorouracil Related Compound F
25 mg $1,171   Add to Cart
36748 Fluoxetine Related Compound A
15 mg $1,171   Add to Cart
36749 Fluoxetine Related Compound B
5 mL $1,171   Add to Cart
36750 Fluoxetine Related Compound C
15 mg $1,171   Add to Cart
36752 Fluphenazine Decanoate DHCl
300 mg $719   Add to Cart
108471 Flupirtine
5 mg $290   Add to Cart
80675 (R)-Flurbiprofen
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80679 (R)-Flurbiprofen Axetil
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80677 Flurbiprofen Impurity 1
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80678 Flurbiprofen Impurity 2
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108734 Flurbiprofen Impurity L
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108738 Fluticasone Dimer Impurity (~90%)
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14277 (+)-3R,5S-Fluvastatin sodium salt
5 mg $1,000   Add to Cart
80901 cis-Fluvoxamine
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36768 Folic Acid Related Compound A
50 mg $715   Add to Cart
36753 Fondaparinux Sodium for Assay
0.6 mL $715   Add to Cart
36754 Fondaparinux Sodium Identification
30 mg $788   Add to Cart
36755 Fondaparinux Sodium System Suitability Mix-ture A
2.5 mg $1,171   Add to Cart
36756 Fondaparinux Sodium System Suitability Mix-ture B
2.5 mg $1,171   Add to Cart