17938

25-Hydroxyvitamin D₃ monohydrate

≥99.0% (HPLC)

• Synonym(s): 25-Hydroxycholecalciferol
• Empirical Formula (Hill Notation): C₂₇H₄₄O₂ · H₂O
• CAS Number: 63283-36-3
• Molecular Weight: 418.65
• Beilstein: 4270041
• MDL number: MFCD00867077
• UNSPSC Code: 12352205
• eCl@ss: 34058003
• PubChem Substance ID: 57647690
• NACRES: NA.79

Properties

• biological source: synthetic
• Assay: ≥99.0% (HPLC)
• form: powder or crystals
• color: white to off-white
• shipped in: dry ice
• storage temp.: −20°C
• SMILES string: [H][C@@]1(CC[C@@]2([H])C(\CCC[C@]12C)=C\C=C3\C[C@@H](O)CCC3=C)[C@H](C)CCCC(C)(C)O
• InChI: 1S/C27H44O2/c1-19-10-13-23(28)18-22(19)12-11-21-9-7-17-27(5)24(14-15-25(21)27)20(2)8-6-16-26(3,4)29/h11-12,20,23-25,28-29H,1,6-10,13-18H2,2-5H3/b21-11+,22-12-/t20-,23+,24-,25+,27-/m1/s1
• InChI key: JWUBBDSIWDLEOM-DTOXIADCSA-N
• Gene Information: human ... VDR(7421)

Description

Biochem/physiol Actions

Cholecalciferol is an inactive form of vitamin D3 which undergoes various levels of hydroxylation to form active vitamin D3 analogs. 1α-Hydroxyvitamin D3 (alfacalcidol) is a synthetic analog that is metabolized to 1,25-dihydroxycholecalciferol, the biologically active form of vitamin D3. Other analogues of cholecalciferol result from different hydroxylations. 25-dihydroxycholecalciferol is a the major circulating form of vitamin D3 and a physiological precursor of 1α,25-Dihydroxycholecalciferol. The conversion is catalyzed by 25-Hydroxyvitamin D3 1-α-hydroxylase (VD3 1A hydroxylase) also known ascytochrome p450 27B1 (CYP27B1).

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Safety Information

• Pictograms: GHS06,GHS08
• Signal Word: Danger
• Hazard Statements: H301 + H311,H330,H372
• Precautionary Statements: P260 - P264 - P280 - P302 + P352 + P312 - P304 + P340 + P310 - P314
• Hazard Classifications: Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - STOT RE 1 Oral
• Storage Class Code: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves