Description

Vitamin D1 is a crystalline sterol compound, distinct from the more common Vitamin D2 and D3 forms. This specific chemical entity is valued in research and development for its role as a reference standard and a key intermediate in synthetic pathways. It is primarily utilized by the pharmaceutical, nutraceutical, and fine chemical industries for analytical and synthetic applications.

Application

• Pharmaceutical Reference Standard: Used for the calibration of analytical instruments and the validation of assay methods in quality control laboratories.
• Biochemical Research: Serves as a critical intermediate or starting material in the study of vitamin D metabolism and the synthesis of novel analogs.
• Nutraceutical Development: Employed in the research and formulation of advanced dietary supplements and fortified food products.
• Fine Chemical Synthesis: Acts as a key building block for the production of specialized steroidal compounds and active pharmaceutical ingredients (APIs).

Basic Information

Product Name	Vitamin D1
CAS No.	520-91-2
Molecular Formula	C28H44O
Molecular Weight	396.65 g/mol
Synonyms	Ergocalciferol Dimer; Lumisterol-D2 Adduct; 9,10-Secoergosta-5,7,10(19),22-tetraen-3-ol, (3β,5Z,7E,10α,22E)-; Vitamin D1; Activated Ergosterol Dimer
EINECS	208-300-2

Quality Control

Our Vitamin D1 is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as assay, related substances, and physical characteristics are provided and available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.