3α,21-Dihydroxy-5α-pregnan-20-one
3α,21-Dihydroxy-5α-pregnan-20-one (CAS 567-02-2), a steroid compound with the molecular formula C21H34O3 and a molecular weight of 334.49 g/mol, is a research chemical. It is recognised for its role in biological pathways, particularly related to GABAergic neurotransmission. This molecule is valuable for researchers investigating cell signaling and neuroscience, serving as a tool in studies of ion channels and neurotransmitter functions.
- IUPAC
- 21-Hydroxyallopregnanolone,5α-Pregnane-3α,21-diol-20-one,5α-THDOC,Allopregnane-3α,21-diol-20-one,Allotetrahydrodeoxycorticosterone
- Synonyms
- 21-Hydroxyallopregnanolone5α-Pregnane-3α,21-diol-20-one5α-THDOCAllopregnane-3α,21-diol-20-oneAllotetrahydrodeoxycorticosterone

Neuroscience Research
Serves as a research chemical in neuroscience, aiding the study of neurotransmission and the function of GABA and glycine receptors. It is relevant for investigating ligand-gated ion channels.
Cell Biology Studies
Utilised in cell biology to explore cellular processes and signaling pathways. Its specific biological activity makes it a useful compound for understanding cellular responses.
Biochemical Assays
Employed in biochemical assays to investigate the modulation of specific biological targets, contributing to a deeper understanding of molecular mechanisms.
| Molecular weight | 334.49 |
|---|---|
| Empirical formula | C21H34O3 |
| Assay | ≥95% |
| 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 3α,21-Dihydroxy-5α-pregnan-20-one used for?
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3α,21-Dihydroxy-5α-pregnan-20-one is used as a research chemical in fields such as neuroscience, cell biology, and biochemical assays, particularly for studying GABAergic systems and ion channels.
What are the CAS number and formula for 3α,21-Dihydroxy-5α-pregnan-20-one?
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The CAS number for 3α,21-Dihydroxy-5α-pregnan-20-one is 567-02-2, and its molecular formula is C21H34O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3α,21-Dihydroxy-5α-pregnan-20-one with a purity of ≥95%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety and handling precautions for this chemical?
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Handling this chemical requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The compound is classified under WGK Germany 3, indicating a high hazard to water.
How is 3α,21-Dihydroxy-5α-pregnan-20-one packed and shipped?
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This chemical is carefully packed and exported by Tech Serve Solutions, adhering to all necessary regulations for safe transport.
How can I request a sample or quote for 3α,21-Dihydroxy-5α-pregnan-20-one?
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To request a sample or a quote for 3α,21-Dihydroxy-5α-pregnan-20-one, please contact our sales department through the website or via direct inquiry.
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