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Cholecalciferol Impurity A

CAS No.
22350-41-0
Chemical Name:
Cholecalciferol Impurity A
Synonyms
3E)-3-[(2E)-2-[(1R;5,6-trans-Vitamin D3;Vitamin D3 Injection;Vitamin D3 Impurity 1;Vitamin D3 Impurity A;Cholecalciferol EP Imp A;Vitamin D3 EP impurity A;5,6-trans-Cholecalciferol;Cholecalciferol impurity A;5,6-trans-Vitamin D3, ~90%
CBNumber:
CB01235577
Molecular Formula:
C27H44O
Molecular Weight:
384.64
MDL Number:
MFCD00078131
MOL File:
22350-41-0.mol
MSDS File:
SDS
Last updated:2026-08-20 20:20:01

Cholecalciferol Impurity A Properties

Boiling point 496.4±24.0 °C(Predicted)
Density 0.96±0.1 g/cm3(Predicted)
storage temp. -65 to -96°C
solubility DMF: 25 mg/ml,DMSO: 3 mg/ml,Ethanol: 30 mg/ml
form A crystalline solid
pka 14.74±0.20(Predicted)
color White to light yellow
Stability Light Sensitive, Temperature Sensitive
InChIKey QYSXJUFSXHHAJI-FVUVGDFOSA-N
SMILES [C@H]1(O)CCC(=C)/C(=C/C=C2\CCC[C@@]3(C)[C@@]\2([H])CC[C@@H]3[C@H](C)CCCC(C)C)/C1
FDA UNII W28SLM7V6D
UNSPSC Code 41116107
NACRES NA.25

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H312-H319-H302-H332-H315
Precautionary statements  P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501-P261-P271-P304+P340-P312-P280-P302+P352-P312-P322-P363-P501-P264-P280-P302+P352-P321-P332+P313-P362
WGK Germany  WGK 3
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 2 Dermal
Acute Tox. 2 Inhalation
Acute Tox. 2 Oral
STOT RE 1
NFPA 704
0
3 0

Cholecalciferol Impurity A price More Price(28)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich SMB00925 5,6-trans-vitamin D3 ≥90% (HPLC) 22350-41-0 10mg $570 2026-04-30 Buy
Sigma-Aldrich PHR8917 trans-Cholecalciferol certified reference material, pharmaceutical secondary standard 22350-41-0 40 mg $1850 2026-04-30 Buy
Cayman Chemical 31225 5,6-trans-Vitamin D3 ≥98% 22350-41-0 1mg $77 2026-04-30 Buy
Cayman Chemical 31225 5,6-trans-Vitamin D3 ≥98% 22350-41-0 5mg $339 2026-04-30 Buy
Cayman Chemical 31225 5,6-trans-Vitamin D3 ≥98% 22350-41-0 10mg $561 2026-04-30 Buy
Product number Packaging Price Buy
SMB00925 10mg $570 Buy
PHR8917 40 mg $1850 Buy
31225 1mg $77 Buy
31225 5mg $339 Buy
31225 10mg $561 Buy

Cholecalciferol Impurity A Chemical Properties, Uses, Production

Chemical Properties

White to Off-White Solid

Uses

5,6-trans-Vitamin D3 is the major photoisomer of Vitamin D3 analog, as an impurity.

Definition

ChEBI: 5,6-trans-vitamin D3 is a member of the class of D3 vitamins that is calciol in which the double bond at position 5 adopts a trans-configuration. During exposure to sunlight, previtamin D3 and vitamin D3 in the skin become photoisomerized to 5,6-trans-vitamin D3. It has a role as a human metabolite. It is a member of D3 vitamins, a seco-cholestane, a secondary alcohol and a hydroxy seco-steroid. It is functionally related to a calciol.

Cholecalciferol Impurity A Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 104)
Supplier Tel Email Country ProdList Advantage
Shanghai Zerui Biotechnology Co., Ltd. 021-54580889 18321124657 1054713992@qq.com China 10598 58
QUALITY CONTROL SOLUTIONS LTD. +86-0755-66853366 +86-13670046396 export03@qcsrm.com China 24318 58
Changzhou Xianglong Pharmaceutical Technology Co., LTD 18661161657 sales@xianglongpharm.com China 9998 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Chemvon Biotechnology Co., Ltd 021-50790412 info@chemvon.com China 371 57
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Daicel Chiral Technologies (China)CO.,LTD 021-50460086-9 15921403865 han_yajun@dctc.daicel.com China 7909 65
S.Z. PhyStandard Bio-Tech. Co., Ltd. 0755-4000505016 13380397412 3001272453@qq.com China 5000 50
Quality Control Solutions Ltd. 0755-66853366 13670046396 orders@qcsrm.com China 18188 56

View Latest Price from Cholecalciferol Impurity A manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5,6-trans-Vitamin D3 pictures 2026-08-18 5,6-trans-Vitamin D3
22350-41-0
$83.00-339.00 98.23% 10g TargetMol Chemicals Inc.
Cholecalciferol Impurity A pictures 2026-06-30 Cholecalciferol Impurity A
22350-41-0
1kg 99% 10000KGS Shaanxi Dideu New Materials Co. Ltd
(1S,3E)-3-[(2E)-2-[(1R,3aS,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol pictures 2020-02-14 (1S,3E)-3-[(2E)-2-[(1R,3aS,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol
22350-41-0
$7.00 1KG 99% 100kg Career Henan Chemical Co

Cholecalciferol Impurity A Spectrum

(1S,3E)-3-[(2E)-2-[(1R,3aS,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol (1S,3E)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(1R)-1,5-DiMethylhexyl]octahydro-7a-Methyl-4H-inden-4-ylidene]ethylidene]-4-Methylenecyclohexanol (3β,5E,7E)-9,10-Secocholesta-5,7,10(19)-trien-3-ol (E,E)-9,10-Secocholesta- 5,7,10(19)-trien-3β-ol 5,6-trans-Cholecalciferol Cholecalciferol IMpurity A (5,6-trans-Cholecalciferol, 5,6-trans-VitaMin D3) 5,6-trans-Vitamin D3 (3.beta., 5E,7E)-9,10-Secocholesa-5,7,10[1p]-trien-3-ol Cholecalciferol EP Impurity A (S,E)-3-((E)-2-((1R,3aS,7aR)-7a-methyl-1-((R)-6-methylheptan-2-yl)hexahydro-1H-inden-4(2H)-ylidene)ethylidene)-4-methylenecyclohexanol Cholecalciferol impurity A Vitamin D3 Injection Cholecalciferol EP Imp A (S,E)-3-((E)-2-((1R,3aS,7aR)-7a Cholecalciferol EP Impurity A (5,6-trans-Cholecalciferol, 5,6-trans-Vitamin D3) Cholecalciferol Impurity 1(Cholecalciferol EP Impurity A) 5,6-trans-Vitamin D3, ~90% Cyclohexanol, 3-[(2E)-2-[(1R,3aS,7aR)-1-[(1R)-1,5-dimethylhexyl]octahydro-7a-methyl-4H-inden-4-ylidene]ethylidene]-4-methylene-, (1S,3E)- Vitamin D3 Impurity 1 Vitamin D3 EP impurity A 33/5000 Pre vitamin D3 impurity A Calciol (5,6-trans-Vitamin D3) (5E,7E)-9,10-secocholesta-5,7,10(19)-trien-3β-ol Vitamin D3 EP Impurity A(Cholecalciferol EP Impurity A) Cholecalciferol EP Impurity A(Vitamin D3 EP Impurity A) trans-cholecalciferol, trans-vitamin D3 (5e,7e)-9,10-secocholesta-5,7,10(19)-trien-3β-ol(trans-cholecalciferol,trans-vitamind3) Vitamin D3 Impurity A (5E,7E)-9,10-Secocholesta-5,7,10(19)-trien-3beta-ol 3E)-3-[(2E)-2-[(1R 7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-2 7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol Cholecalciferol Impurity A CRS 22350-41-0 other