Pregnenolone acetate
Pregnenolone acetate (CAS: 1778-02-5), with the molecular formula C23H34O3 and a molecular weight of 358.51 g/mol, is a steroid derivative. It is utilised as a chemical intermediate in complex organic synthesis, particularly within research settings exploring steroid chemistry. This compound serves as a chiral building block in the creation of more intricate molecular structures, contributing to advancements in chemical synthesis.
- IUPAC
- 3β-Acetoxy-5-pregnen-20-one,5-Pregnen-3β-ol-20-one acetate
- Synonyms
- 3β-Acetoxy-5-pregnen-20-one5-Pregnen-3β-ol-20-one acetate

Chemical Synthesis Intermediate
Pregnenolone acetate serves as a valuable intermediate in the synthesis of various organic compounds. Its specific chemical structure allows for further functionalization in multi-step synthetic routes.
Chiral Building Block
As a chiral molecule, Pregnenolone acetate can be employed as a starting material or key intermediate in asymmetric synthesis. It is useful for constructing stereochemically defined molecules.
Steroid Chemistry Research
This compound is utilised in research laboratories for studies related to steroid chemistry. Its acetate form offers distinct reactivity and solubility properties compared to its parent compound.
| Molecular weight | 358.51 |
|---|---|
| Empirical formula | C23H34O3 |
| Assay | 99% |
| Optical activity | [α]20/D +19°, c = 1 in ethanol |
| Melting point | 149-152 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Pregnenolone acetate used for?
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Pregnenolone acetate is primarily used as a chemical intermediate and a chiral building block in complex organic synthesis and steroid chemistry research.
What is the CAS number and formula for Pregnenolone acetate?
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The CAS number for Pregnenolone acetate is 1778-02-5, and its molecular formula is C23H34O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Pregnenolone acetate with an assay of 99%. We do not represent this product as USP, BP, or EP grade.
How should Pregnenolone acetate be handled?
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Handle Pregnenolone acetate with appropriate personal protective equipment, including eyeshields and gloves. Use a type N95 (US) or type P1 (EN143) respirator filter if airborne exposure is a risk.
Is Pregnenolone acetate a controlled substance?
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The provided data does not indicate that Pregnenolone acetate is a controlled substance.
How is Pregnenolone acetate packed and exported?
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Pregnenolone acetate is carefully packed to ensure stability and safety during transit. TSS is a specialist global supplier and exporter of fine chemicals.
How can I request a sample or quote for Pregnenolone acetate?
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To request a sample or a quotation for Pregnenolone acetate, please contact our sales team through the website or by phone.
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