Vitamins are a group of organic nutrients required in small quantities for a variety of biological functions which cannot be synthesized in the body. In general, vitamins are classified into thirteen groups in human. Deficiency of some vitamins causes a specific disease. For example, beriberi is caused by a lack of vitamin B₁. The disease is cured by restoring the vitamin to one’s diet.
Vitamins are also classified as either water-soluble or fat-soluble vitamins. There are 9 water-soluble vitamins: vitamin B₁ (thiamine), vitamin B₂ (riboflavine), niacin, pantothenic acid, vitamin B₆ (pyridoxine etc.), biotin, folic acid, vitamin B₁₂ (cyanocobalamin), and vitamin C (ascorbic acid). The fat-soluble vitamins comprise vitamins A (retinol etc.), D (calciferols etc.), E (tocoferols etc.), and K (phylloquinone etc.).
The followings are vitamins, vitamin related compounds, and vitamin derivatives that can be obtained from TCI.

Vitamins

Vitamin Related Compounds

Vitamin Derivatives

Vitamins

A0537	B0463	C0005
P0012	P1237	C0560
C0314	E0018	F0043
M0373	N0078	N0082
P0561	R0064	R0088
R0020	R0023	R0055
P0013	A0539	T0181
T0182	T0183	T0251
T2309	T0252	T2322
T2283	P0642	V0103

A0537	L-Ascorbic Acid
B0463	Biotin
C0005	Calciferol
P0012	Calcium D-Pantothenate
P1237	Calcium DL-Pantothenate
C0560	beta-Carotene
C0314	Cholecalciferol
E0018	Ergosterol
F0043	Folic Acid Hydrate
M0373	2-Methyl-1,4-naphthoquinone
N0078	Nicotinamide
N0082	Nicotinic Acid
P0561	Pyridoxine Hydrochloride
R0064	Retinoic Acid
R0088	13-cis-Retinoic Acid
R0020	Riboflavin
R0023	Riboflavin 5'-Monophosphate Sodium Salt
R0055	Riboflavin Tetrabutyrate
P0013	Sodium D-Pantothenate
A0539	Sodium L-Ascorbate
T0181	Thiamine Hydrochloride Hydrate
T0182	Thiamine Nitrate
T0183	Thiamine Pyrophosphate Chloride
T0251	DL-alpha-Tocopherol
T2309	D-alpha-Tocopherol
T0252	DL-alpha-Tocopherol Acetate
T2322	D-alpha-Tocopherol Acetate
T2283	D-alpha-Tocopherylquinone
C0449	Vitamin B12
P0642	Vitamin K1
V0103	Vitamin K4

Vitamin Related Compounds

I0632	I0633	C0326
C0553	C0328	C0329
C0331	C1971	D1956
I0040	I0628	I0629
I0630	I0631	M0644

I0632	1D-chiro-Inositol
I0633	1L-chiro-Inositol
C0326	Choline (48-50% in Water)
C0553	Choline Bitartrate
C0328	Choline Bromide
C0329	Choline Chloride
C0331	Choline Dihydrogen Citrate
C1971	Coenzyme Q10
D1956	2,3-Dimethoxy-5-methyl-1,4-benzoquinone
I0040	myo-Inositol
I0628	epi-Inositol
I0629	allo-Inositol
I0630	muco-Inositol
I0631	scyllo-Inositol
M0644	DL-Methionine Methylsulfonium Chloride
D0919	beta-Nicotinamide Adenine Dinucleotide Hydrate, oxidized form [for Biochemical Research]
D0920	beta-Nicotinamide Adenine Dinucleotide Disodium Salt Hydrate, reduced form [for Biochemical Research]
C0379	beta-Nicotinamide Adenine Dinucleotide Phosphate Sodium Salt Hydrate, oxidized form [for Biochemical Research]
T0521	beta-Nicotinamide Adenine Dinucleotide Phosphate Tetrasodium Salt reduced form [for Biochemical Research]
C0330	Tricholine Citrate (ca. 65% in Water)

Vitamin Derivatives

A0520	T0558	D0053
D0151	A0757	F0014
I0507	A0540	D0073
P0559	C0377	P1395
I0232	T0176	T0900

A0520	D-Araboascorbic Acid
T0558	Basic Yellow 1
D0053	4-Deoxypyridoxine Hydrochloride
D0151	Dibenzoyl Thiamine
A0757	2,6-Di-O-palmitoyl-L-ascorbic Acid
F0014	Flavin Adenine Dinucleotide Disodium Salt Hydrate
I0507	(+)-5,6-O-Isopropylidene-L-ascorbic Acid
A0540	6-O-Palmitoyl-L-ascorbic Acid
D0073	Proflavine Hemisulfate Hydrate
P0559	Pyridoxal Hydrochloride
C0377	Pyridoxal 5-Phosphate Monohydrate
P1395	Pyridoxine 3,4-Dipalmitate
I0232	Sodium Isoascorbate Monohydrate
T0176	Thiamine Disulfide Hydrate
T0900	Thiamine Disulfide Nitrate