Medical Isotopes, Inc. is a premier manufacturer of stable isotope chemicals labeled with: Deuterium, C13, N15, O18 and metal isotopes.  We specialize in custom synthesis with isotopes and non-labeled compounds. www.medicalisotopes.com
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Providing stable isotope chemicals and research compounds worldwide to universities, laboratories, hospitals, and government agencies.
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Alphabetical Listing of Our Products
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Vitamins


Medical Isotopes specializes in labeled vitamins that are used in medical research as internal standards and other analytical applications. Vitamins have diverse biochemical functions. Some have hormone-like functions as regulators of mineral metabolism (such as vitamin D), or regulators of cell and tissue growth and differentiation (such as some forms of vitamin A). Others function as antioxidants (e.g., vitamin E and sometimes vitamin C). The largest number of vitamins (such as B complex vitamins) function as precursors for enzyme cofactors, that help enzymes in their work as catalysts in metabolism. Some of Medical Isotopes’ most requested vitamins are 25-Hydroxy Vitamin D3-d6, 25-Dihydroxy Vitamin D2-d6 and Vitamin E-5,7,8-d9.

Vitamin A
Catalog Number Product Name Enrichment

Quantity

Price

 

 
 
β-Carotene
98%
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3-Dehydro retinol
2.5 mg $900     Add to Cart  
 
5,6-Dihydro-5,6-dihydroxy retinoic acid
1 mg $390     Add to Cart  
5 mg $1,190     Add to Cart  
 
5,6-Epoxy-9-cis-retinoic acid
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4-Hydroxy retinol
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all-trans 3-Hydroxyretinol
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all-trans 3-Hydroxyretinol-d4 (ring-d4)
98%D
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4-Keto 13-cis-Retinoic acid
10 mg $1,390     Add to Cart  
 
4-Keto 13-cis-retinoic acid-d6
1 mg $490     Add to Cart  
5 mg $1,490     Add to Cart  
 
4-Keto all-trans-Retinoic Acid
1 mg $190     Add to Cart  
5 mg $590     Add to Cart  
 
4-Oxo-9-cis,13-cis-retinoic acid-13C,d3
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4-Oxo 13-cis-retinoic acid dimer
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4-Oxo alitretinoin-13C,d3
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9-cis-Retinal
10 mg $875     Add to Cart  
50 mg $2,000     Add to Cart  
 
11-cis Retinal
0.5 mg $690     Add to Cart  
5 mg $3,590     Add to Cart  
 
13-cis Retinal 95%
10 mg $845     Add to Cart  
50 mg $1,760     Add to Cart  
 
13-cis Retinoic acid
100 mg $190     Add to Cart  
500 mg $590     Add to Cart  
 
13-cis-Retinoic acid glucuronide
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Retinol
500 mg $490     Add to Cart  
1 g $790     Add to Cart  
 
9-cis-Retinyl acetate
5 mg $990     Add to Cart  
 
Vitamin A-d5 acetate
1 mg $690     Add to Cart  
 
Vitamin A Acetate
10 g $840     Add to Cart  
50 g $1,720     Add to Cart  
 
Xanthophyll
1 mg $990     Add to Cart  
Vitamin B
Catalog Number Product Name Enrichment

Quantity

Price

 

 
 
Folic Acid-d4
97%
1 mg $890     Add to Cart  
 
N-Acetyl Folic Acid-d4
1 mg $1,025     Add to Cart  
10 mg Request Quote  
 
Levomefolic acid
5 mg $675     Add to Cart  
50 mg $1,790     Add to Cart  
 
Mecobalamin
10 mg $860     Add to Cart  
50 mg $1,880     Add to Cart  
 
Methylcobalamin
5 mg $950     Add to Cart  
25 mg $1,500     Add to Cart  
 
Niacin
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Niacinamide
1 g $890     Add to Cart  
 
Nicotinic-d4 acid
98%D
5 mg $590     Add to Cart  
 
Panthenol-d6
98% D
5 mg $990     Add to Cart  
 
Pyridoxal-d3
98% D
1 mg $390     Add to Cart  
 
Pyridoxal-d3 5’-phosphate
98.8%D
1 mg $990     Add to Cart  
5 mg $1,990     Add to Cart  
 
Pyridoxal-d3 hydrochloride
1 mg $390     Add to Cart  
5 mg $1,190     Add to Cart  
 
Pyridoxal hydrochloride
1 g $90     Add to Cart  
5 g $290     Add to Cart  
 
Pyridoxamine-d3 dihydrochloride
98% D3
1 mg $790     Add to Cart  
 
4-Pyridoxic acid-d2
Request Quote  
 
Pyridoxine-d2 hydrochloride
98%D
10 mg $690     Add to Cart  
 
Pyridoxine-d3 hydrochloride
98% D
1 mg $290     Add to Cart  
 
Pyridoxine-d5
98%D
1 mg $875     Add to Cart  
5 mg $2,000     Add to Cart  
 
Pyridoxine-5-phosphate HCl
10 mg $2,400     Add to Cart  
25 mg $4,400     Add to Cart  
 
Pyridoxine-d4 HCl
10 mg $1,990     Add to Cart  
25 mg $3,490     Add to Cart  
 
Riboflavin-d6
Request Quote  
 
Vitamin B12
100 mg $590     Add to Cart  
 
Vitamin B6
1 mg $500     Add to Cart  
 
Vitamin B2
1 g $490     Add to Cart  
 
Vitamin B5
5 mg $500     Add to Cart  
 
Vitamin B1-13C4 • HCl
99% 13C
5 mg $990     Add to Cart  
 
Vitamin B1-d3 hydrochloride
95% D
1 mg $590     Add to Cart  
 
Vitamin B2-13C4,15N2
99% 13C4, 98% 15N2
1 mg $790     Add to Cart  
 
Vitamin B3-d4 (on Pyridine ring)
98%D
1 mg $990     Add to Cart  
5 mg $2,200     Add to Cart  
 
Vitamin B5-d4 Calcium Salt
99%D
1 mg $590     Add to Cart  
 
Vitamin B5- 13C6,15N2
99% 13C6, 98% 15N2
1 mg $990     Add to Cart  
5 mg $1,600     Add to Cart  
Vitamin C
Catalog Number Product Name Enrichment

Quantity

Price

 

 
 
L-Ascorbic Acid
25 g $580     Add to Cart  
100 g $825     Add to Cart  
 
L-Ascorbic acid-1,2-13C2
99%C
0.05 g $690     Add to Cart  
0.1 g $1,150     Add to Cart  
 
L-ascorbic acid-1,3-13C2
0.05 g $690     Add to Cart  
0.1 g $1,150     Add to Cart  
 
L-ascorbic acid-1,6-13C2
0.05 g $800     Add to Cart  
0.1 g $1,300     Add to Cart  
 
L-Ascorbic acid-1-13C
99% 13C
50 mg $590     Add to Cart  
 
L-ascorbic acid-2-13C
0.05 g $710     Add to Cart  
0.1 g $880     Add to Cart  
 
L-ascorbic acid-3-13C
0.05 g $780     Add to Cart  
0.1 g $1,000     Add to Cart  
 
L-ascorbic acid-5-13C
0.05 g $900     Add to Cart  
0.1 g $1,510     Add to Cart  
 
L-ascorbic acid-6,6-d2
0.25 g $1,720     Add to Cart  
0.5 g $2,850     Add to Cart  
 
L-ascorbic acid-6-13C
Request Quote  
 
Ascorbic Acid Acetonide
20 g $860     Add to Cart  
100 g $1,880     Add to Cart  
 
L-Ascorbic acid-U-13C6
50 mg $900     Add to Cart  
100 mg $1,510     Add to Cart  
 
2-Phospho-L-ascorbic acid trisodium salt
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Vitamin D2
Catalog Number Product Name Enrichment

Quantity

Price

 

 
 
Acetic acid 2S,3-dimethyl-3-trimethylsilanyloxy-butyl ester
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Acetic acid 3-hydroxy-2S,3-dimethyl-butyl ester
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(S)-Acetic acid 4-methylene-3-(2-[7R-methyl-1R-(1R,4R,5-trimethyl -hex-2-enyl)-octahydro-inden-4-ylidene]-ethylidene)-cyclohexyl ester
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Acetic acid 14-[7a-methyl-1-(1,4,5-trimethyl-hex-2-enyl)- octahydro-inden-4-ylidenemethyl]-7,12-dioxo- 1,2,3,4,5,7,12,14- octahydro-phthalazino[2,3-β]phthalazin-2-yl ester
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(3-Benzenesulfonyl-1,1,2R-trimethyl-propoxy)- trimethyl-silane
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Benzoic acid 1-(5-hydroxy-1,4,5-trimethyl-hex-2-enyl)-7a-methyl- octahydro-inden-4-yl ester
Request Quote  
 
Benzoic acid 1S-(2-hydroxy-1R-methyl-ethyl)- 7R-methyl-octahydro- inden-4R-yl ester
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Benzoic acid 1S-(2R-hydroxy-5-methoxymethoxy-1S,5-dimethyl-hex-3- ynyl)-7R-methyl-octahydro-inden-4-ylester
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Benzoic acid 1S-(2S-hydroxy-5-methoxymethoxy-1S,5-dimethyl-hex-3- enyl)-7R-methyl-octahydro-inden-4-ylester
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Benzoic acid 1S-(5-methoxymethoxy-1S,5-dimethyl-2-oxo-hex-3-ynyl) -7R-methyl-octahydro-inden-4-yl ester
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Benzoic acid 7R-methyl-1- (1S-methyl-2-oxo-ethyl)-octahydro-inden -4S-yl ester
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(S)-Benzoic acid 7R-methyl-1R-(1R,4R,5-trimethyl-hex-2-enyl)- octahydro-inden-4-yl ester
Request Quote  
 
4-Benzyloxy-1-(2-iodo-1-methyl-ethyl)-7a-methyl-octahydro-indene
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(3-Benzyloxy-1,1,2S-trimethyl-propoxy)-tert-butyl-dimethyl-silane
Request Quote  
 
2-(3-Benzyloxy-1,1,2S-trimethyl-propoxy)-tetrahydro-pyran
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4-Benzyloxy-2,3S-dimethyl-butan-2-ol
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4-(2-[3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methyl- cyclohexylidene]-ethylidene)-7a-methyl-1-(1,4,5-trimethyl-hex-2- enyl)-octahydro-indene
Request Quote  
 
4-(2-[3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene- cyclohexylidene]-ethylidene)-7a-methyl-1-(1,4,5-trimethyl-hex-2- enyl)-octahydro-indene
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4-(2-[3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene- cyclohexylidene]-ethylidene)-7a-methyl-1-(1,4,5-trimethyl-hex-2- enyl)-octahydro-indene
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5-(4-(2-[3S,5R-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene- cyclohexylidene]-ethylidene)-7R-methyl-octahydro-inden-1R-yl)-(R) -hexanoic acid ethyl ester
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6-(4-(2-[3S,5R-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene- cyclohexylidene]-ethylidene)-7R-methyl-octahydro-inden-R-yl)-(R)- 2-methyl-heptan-2-ol
Request Quote  
 
tert-Butyl-(3-(2-[1-(2-iodo-1-methyl-ethyl)-7a-methyl-octahydro- inden-4-ylidene]-ethylidene)-4-methylene-cyclohexyloxy)-dimethyl- silane
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tert-Butyl-dimethyl-(3-[7R-methyl-1R-(1R,4R,5-trimethyl-hex-2- enyl)-octahydro-inden-4-ylidenemethyl]-2,2-dioxo-2,3,4,5,6,7- hexahydro-1H-2l6-benzo[c]thiophen-5S-yloxy)-silane
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(S)-tert-Butyl-dimethyl-(4-methylene-3-(2-[7R-methyl-1R-(1R,4R,5- trimethyl-hex-2-enyl)-octahydro-inden-4-ylidene]-ethylidene)- cyclohexyloxy)-silane
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3-(2-(1R-[5-(tert-Butyl-dimethyl-silanyloxy)-1R,4,5-trimethyl-hex -2-enyl]-7R-methyl-octahydro-inden-4-ylidene)-ethylidene)-4- methylene-cyclohexan-1S-ol
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2-(4-(2-[5S-(tert-Butyl-dimethyl-silanyloxy)-2-methylene- cyclohexylidene]-ethylidene)-7R-methyl-octahydro-inden-1-Ryl)-(S) -propan-1-ol
Request Quote  
 
5-(4-(2-[5S-(tert-Butyl-dimethyl-silanyloxy)-2-methylene- cyclohexylidene]-ethylidene)-7R-methyl-octahydro-inden-1R-yl)-(R) -hexanoic acid ethyl ester
Request Quote  
 
3-(tert-Butyl-dimethyl-silanyloxy)-2S,3-dimethyl-butan-1-ol
Request Quote  
 
2-(tert-Butyl-dimethyl-silanyloxy)-13-[7a-methyl-1-(1,2,4- trimethyl-pent-2-enyl)-octahydro-inden-4-ylidenemethyl]-2,3,4,4a, 13,13a-hexahydro-1H-indazolo[1,2-β]phthalazine-6,11-dione
Request Quote  
 
(S)-tert-Butyl-dimethyl-[7a-methyl-1- (1R,4R,5-trimethyl-hex-2- enyl)-octahydro-inden-4-yloxy]-silane
Request Quote  
 
tert-Butyl-[1-(2-iodo-1-methyl-ethyl)-7a-methyl-octahydro-inden-4 -yloxy]-dimethyl-silane
Request Quote  
 
tert-Butyl-[3S-(2-(1R-[2-(diphenyl-phosphinoyl)-1S-methyl-ethyl]- 7R-methyl-octahydro-inden-4-ylidene)-ethylidene)-4-methylene- cyclohexyloxy]-dimethyl-silane
Request Quote  
 
1,25-Dihydroxy Vitamin D2-d3
99% D3
Request Quote  
 
24(R,S),25-Dihydroxy vitamin D2
1 mg $990     Add to Cart  
 
1α,25-dihydroxy Vitamin D2
1 mg $990     Add to Cart  
 
1α,25-Dihydroxy vitamin D2-26,26,26,27,27,27-d6
99%D
1 mg $1,400     Add to Cart  
 
24,25-Dihydroxy Vitamin D2-d3
0.5 mg $1,150     Add to Cart  
1 mg $2,000     Add to Cart  
 
1α,25-Dihydroxy Vitamin D2, 50 ug/mL in ethanol
1 ml $650     Add to Cart  
 
1,25-Dihydroxy Vitamin D2-d3 in ethanol
99%
1 ml $1,490     Add to Cart  
 
2S,3-Dimethyl-3-trimethylsilanyloxy-butan-1-ol
Request Quote  
 
(2R,3-Dimethyl-3-trimethylsilanyloxy-butyl)- triphenyl- phosphonium; iodide
Request Quote  
 
2-(5-[1-(1,5-Dimethyl-hex-2-enyl)-7a-methyl-octahydro-inden-4- ylidenemethyl]-1,3-dioxo-2-phenyl-2,3,5,6,7,8,9,10-octahydro-1H- [1,2,4]triazolo[1,2-β]phthalazin-7-yloxy)-2-methyl-propionic acid
Request Quote  
 
2,2-Dimethyl-propionic acid 5S-methyl-5-[7R-methyl-1-(1R,4R,5- trimethyl-hex-2-enyl)-octahydro-inden-4-ylidenemethyl]-1,3-dioxo- 2-phenyl-2,3,5,6,7,8,9,10-octahydro-1H-pyrazolo[1,2-β] phthalazin-7S-ylester
Request Quote  
 
[3-( Diphenyl-phosphinoyl)-1,1,2R-trimethyl-propoxy]-trimethyl- silane
Request Quote  
 
Doxercalciferol-13C,d3
Request Quote  
 
Ergosterol
1 g $690     Add to Cart  
 
Falecalcitriol
1 mg $1,400     Add to Cart  
 
3-(4-Hydroxy-7a-methyl-octahydro-inden-1-yl)-butyronitrile
Request Quote  
 
1α-Hydroxy vitamin D2
1 mg $1,400     Add to Cart  
 
1α-Hydroxy Vitamin D2-d6
99%D
Request Quote  
 
3-epi-25-Hydroxy Vitamin D2-d3
98% D
Request Quote  
 
25-Hydroxy vitamin D2-d3
97%D
1 mg $2,500     Add to Cart  
 
3-epi-25-Hydroxy Vitamin D2-d6
Request Quote  
 
25-Hydroxy vitamin D2-26,26,26,27,27,27-d6
99%D
1 mg $1,400     Add to Cart  
 
3-Methoxymethoxy-2S,3-dimethyl-butan-1-ol
Request Quote  
 
(3-Methoxymethoxy-2S,3-dimethyl-butoxymethyl)-benzene
Request Quote  
 
3-Methoxymethoxy-3-methyl-but-1-yne
Request Quote  
 
3-[7a-Methyl-1-(1,4,5-trimethyl-hex-2-enyl)-octahydro-inden-4- ylidenemethyl]-2,2-dioxo-2,3,4,5,6,7-hexahydro-1H-2-benzo[c] thiophen-5-ol
Request Quote  
 
Paricalcitol
1 mg $1,500     Add to Cart  
 
Toluene-4-sulfonic acid 2-(4-hydroxy-7a-methyl-octahydro-inden-1- yl)-propyl ester
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20-(R)-VD NCE
Request Quote  
 
20-(S)-VD NCE
Request Quote  
 
Vitamin D2-d3
97% D
1 mg $890     Add to Cart  
 
Vitamin D2
5 mg $50     Add to Cart  
 
Vitamin D2-26,26,26,27,27,27-d6
99%D
1 mg $1,490     Add to Cart  
 
Vitamin D2-3’,5’-dinitrobenzoate
Request Quote  
 
Vitamin D2-d3, 100ug/mL in ethanol
97%D
1 ml $590     Add to Cart  
 
Vitmain D2 precursor Diels-Alder adduct
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Vitamin D3
Catalog Number Product Name Enrichment

Quantity

Price

 

 
 
1,25-Dihydroxy Vitamin D3-d3
97% D
1 mg $2,800     Add to Cart  
 
1α,25-Dihydroxy vitamin D3
1 mg $190     Add to Cart  
 
24(R,S),25-Dihydroxy vitamin D3
1 mg $990     Add to Cart  
5 mg $1,975     Add to Cart  
 
24(R),25-Dihydroxy vitamin D3 (26,26,26,27,27,27-d6)
>98%D
1 mg $1,400     Add to Cart  
 
1α,25-Dihydroxy Vitamin D3, 50 ug/mL in ethanol
1 ml $650     Add to Cart  
 
(24R)-24,25-DihydroxyVitamin D3
99%
100 ug $990     Add to Cart  
 
Eldecalcitol
Request Quote  
 
Elocalcitol
10 mg Request Quote  
50 mg Request Quote  
 
1α-Hydroxy vitamin D3
1 mg $790     Add to Cart  
 
3-epi-25-Hydroxy vitamin D3
1 mg $1,500     Add to Cart  
 
3-epi-25-Hydroxy vitamin D3-d3
99% D
1 mg $2,500     Add to Cart  
 
25-Hydroxy vitamin D3
1 mg $500     Add to Cart  
 
25-Hydroxy Vitamin D3-d3
97%D
1 mg $1,400     Add to Cart  
 
25-Hydroxy vitamin D3-26,26,26,27,27,27-d6
99%D
1 mg $250     Add to Cart  
5 mg $1,190     Add to Cart  
 
25-Hydroxy vitamin D3-26,26,26,27,27,27-d6 monohydrate, solution in ethanol
98%D
1 ml $290     Add to Cart  
 
25-Hydroxy Vitamin D3-DPEG4-Biotin
1 mg $1,900     Add to Cart  
5 mg $3,700     Add to Cart  
 
25-Hydroxy vitamin D3-d3 solution in ethanol
97%
5 ug/mL $290     Add to Cart  
 
25-Hydroxy vitamin D3-LC-biotin
1 mg $1,600     Add to Cart  
5 mg $3,190     Add to Cart  
 
25-Hydroxy vitamin D3 monohydrate
Request Quote  
 
Inecalcitol
10 mg Request Quote  
50 mg Request Quote  
 
Maxacalcitol
1 mg $1,500     Add to Cart  
 
Seocalcitol
1 mg $990     Add to Cart  
 
Tacalcitol
1 mg $990     Add to Cart  
5 mg $2,200     Add to Cart  
 
Tacalcitol Monohydrate
1 mg $490     Add to Cart  
5 mg $1,225     Add to Cart  
 
1α,24,25-Trihydroxy vitamin D3
Request Quote  
 
Vitamin D3
10 mg $210     Add to Cart  
 
Vitamin D3-d3 in ethanol
97% D
1 ml $490     Add to Cart  
 
Vitamin D3-26,26,26,27,27,27-d6
99%D
1 mg $1,400     Add to Cart  
Vitamin E
Catalog Number Product Name Enrichment

Quantity

Price

 

 
 
δ-Tocotrienol
5 mg $240     Add to Cart  
10 mg $381     Add to Cart  
 
Vitamin E
10 g $250     Add to Cart  
 
Vitamin E 5,7,8-d9 (5-Cd3,7-Cd3,8-Cd3)
98.3%D
1 mg $1,090     Add to Cart  
 
Vitamin E (5,7-d6) acetate
98% D
1 mg $690     Add to Cart  
Vitamin H
Catalog Number Product Name Enrichment

Quantity

Price

 

 
 
Biotin-d2
98% D2
5 mg $690     Add to Cart  
 
Vitamin B7-d4
98%D
1 mg $890     Add to Cart  
Vitamin K
Catalog Number Product Name Enrichment

Quantity

Price

 

 
 
Foretinib
5 mg $590     Add to Cart  
25 mg $1,790     Add to Cart  
 
Menaquinone 4
10 mg $860     Add to Cart  
50 mg $1,880     Add to Cart  
 
Menaquinone 7
1 mg $900     Add to Cart  
5 mg $2,200     Add to Cart  
 
Menaquinone 9-D7
Request Quote  
 
Vitamin K1
5 mg $250     Add to Cart  
 
Vitamin K1 2,3-Epoxide
1 mg $290     Add to Cart  
5 mg $890     Add to Cart  
 
Vitamin K1-d7
99% D
1 mg $1,090     Add to Cart  
 
Vitamin K3-d8
99% D8
5 mg $990     Add to Cart  
 
trans-Vitamin K1
25 mg $1,650     Add to Cart  
50 mg $2,250     Add to Cart  
 
Vitamin K1- 18O (Mixture of 1-18O and 4-18O)
98%:18O
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trans-Vitamin K1-d7
1 mg $590     Add to Cart  
 
Vitamin K1-13C6
1 mg $1,100     Add to Cart  
5 mg $3,200     Add to Cart  
 
Vitamin K3 (methyl-d3)
98%D
10 mg $259     Add to Cart  
50 mg $835     Add to Cart  
 
Vitamin K3 (not deuterated)
5 mg $250     Add to Cart  
Vitamins - Labeled & Unlabeled
Catalog Number Product Name Enrichment

Quantity

Price

 

 
 
β-Carotene (19,19,19,19`,19`,19`-d6)
5 mg $890     Add to Cart  
 
24(R),25-Dihydroxy Vitamin D3-(6,19,19-d3)
Request Quote  
 
1α,25-Dihydroxy Vitamin D3 (26,26,26,27,27,27-d6) 100ug/mL in ethanol
97%
1 ml $1,490     Add to Cart  
 
Ergosterol-d4
1 mg $990     Add to Cart  

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