Previtamin D3

Name: Previtamin D3
Brand: Zemixal
SKU: ZX-023923

Reference StandardAvailable on request

Buy Previtamin D3 (CAS 1173-13-3) from Zemixal. Request a quote with price, lead time and documents. Part of our API Impurities range.

Pack sizes

CAS number1173-13-3

FormulaC₂₇H₄₄O

Molar mass384.6 g/mol

Physical formSolid

HS code38229090

InChIKeyYUGCAAVRZWBXEQ-WHTXLNIXSA-N

IUPAC name(1S)-3-[(Z)-2-[(1R,3aR,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-1,2,3,3a,6,7-hexahydroinden-4-yl]ethenyl]-4-methylcyclohex-3-en-1-ol

About Previtamin D3

Analytical teams working on Cholecalciferol use Previtamin D3 as a qualified comparison standard. Identity at a glance (Reference Standard): CAS 1173-13-3, formula C27H44O and molar mass 384.6 g/mol. It is handled as a solid.

Use cases we see most often

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Storage and safety notes

Classified under GHS with signal word Danger and hazard statements H300+H310+H330, H300, H310 and H330. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Cholecalciferol

See every impurity, metabolite and related compound we list for this API.

Cholecalciferol standards

Typical uses

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Grade guides

Deuterated and Stable-Isotope-Labelled Compounds

Specifications and identifiers

Specifications of Previtamin D3
Product name	Previtamin D3
Catalogue number	ZX-023923
CAS number	1173-13-3
IUPAC name	(1S)-3-[(Z)-2-[(1R,3aR,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-1,2,3,3a,6,7-hexahydroinden-4-yl]ethenyl]-4-methylcyclohex-3-en-1-ol
Molecular formula	C₂₇H₄₄O
Molar mass	384.6 g/mol
Exact mass	384.3392
Grade	Reference Standard
Physical form	Solid
XLogP3	7.7
H-bond donors / acceptors	1 / 1
Topological polar surface area	20.2 Å²
HS code	38229090
InChIKey	YUGCAAVRZWBXEQ-WHTXLNIXSA-N
SMILES	CC1=C(C[C@H](CC1)O)/C=C\C2=CCC[C@]3([C@H]2CC[C@@H]3[C@H](C)CCCC(C)C)C
PubChem CID	5281058
Synonyms	Precalciferol, Precholecalciferol, Previtamin D, (6Z)-tacalciol, (6Z)-(3S)-9,10-seco-5(10),6,8-cholestatrien-3-ol, (3S,6Z)-9,10-secocholesta-5(10),6,8-trien-3-ol, tachysterol(3), 1,25-dihydroxy-3-epi-19-nor-previtamin D3, Precalciferol3, (3beta,6Z)-9,10-Secocholesta-5(10),6,8-trien-3-ol

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

Acute toxicity

Health hazard

Signal word Danger

H300+H310+H330Fatal if swallowed, in contact with skin or if inhaled
H300Fatal if swallowed
H310Fatal in contact with skin
H330Fatal if inhaled
H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements P260, P262, P264, P270, P271, P280, P284, P301 + P316, P302 + P352, P304 + P340, P316, P319, P320, P321, P330, P361 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Previtamin D3
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Previtamin D3

Which CAS number identifies Previtamin D3?

Previtamin D3 is registered under CAS 1173-13-3. You may also see it listed as Precalciferol, Precholecalciferol, Previtamin D. Our catalogue number for this item is ZX-023923.

What are the formula and molar mass of Previtamin D3?

For Previtamin D3, its formula is C27H44O and its molar mass is 384.6 g/mol. The systematic (IUPAC) name is (1S)-3-[(Z)-2-[(1R,3aR,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-1,2,3,3a,6,7-hexahydroinden-4-yl]ethenyl]-4-methylcyclohex-3-en-1-ol. InChIKey YUGCAAVRZWBXEQ-WHTXLNIXSA-N lets you match it in any structure database.

How is Previtamin D3 used in pharmaceutical QC?

Previtamin D3 is a characterised reference material linked to Cholecalciferol. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Previtamin D3?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Previtamin D3?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship Previtamin D3 to my country?

Yes. Because Previtamin D3 is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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