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API Impurities

1-Testosterone

Reference StandardAvailable on request

1-Testosterone (CAS 65-06-5) supplier Zemixal. Request a quote with price, lead time and documents. Part of our API Impurities range.

Pack sizes
1-Testosterone chemical structure
CAS number65-06-5
FormulaC19H28O2
Molar mass288.4 g/mol
Physical formSolid
HS code38229090
InChIKeyOKJCFMUGMSVJBG-ABEVXSGRSA-N
IUPAC name(5S,8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one

About 1-Testosterone

1-Testosterone belongs to the Testosterone reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 65-06-5, formula C19H28O2 and molar mass 288.4 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Safe handling

It carries the GHS signal word Danger (H301, H311, H315 and H319), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Testosterone

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

Testosterone standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of 1-Testosterone
Product name1-Testosterone
Catalogue numberZX-044500
CAS number65-06-5
IUPAC name(5S,8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
Molecular formulaC19H28O2
Molar mass288.4 g/mol
Exact mass288.2089
GradeReference Standard
Physical formSolid
XLogP34
H-bond donors / acceptors1 / 2
Topological polar surface area37.3 Ų
HS code38229090
InChIKeyOKJCFMUGMSVJBG-ABEVXSGRSA-N
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2O)CC[C@@H]4[C@@]3(C=CC(=O)C4)C
PubChem CID236666
SynonymsDelta1-dihydrotestosterone, 1-Testo, 17beta-Hydroxy-5alpha-androst-1-en-3-one, Androstendolone, 1-Androstene-17-ol-3-one, 1-T [Steroid], 5alpha-androst-1-en-17beta-ol-3-one, 1-(5beta)-Androstene-17beta-ol-3-one, h_117_1_testosterone, 5.alpha.-Androst-1-en-3-one, 17.beta.-hydroxy-, Delta(1)-dihydrotestosterone, 1-T

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

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity
GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Danger

  • H301Toxic if swallowed
  • H311Toxic in contact with skin
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H331Toxic if inhaled
  • H335May cause respiratory irritation
  • H350May cause cancer

Precautionary statements P203, P261, P262, P264, P264 + P265, P270, P271, P280, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P316, P318, P319, P321, P330, P332 + P317, P337 + P317, P361 + P364, P362 + 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 1-Testosterone
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

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

Questions about 1-Testosterone

Which CAS number identifies 1-Testosterone?
1-Testosterone is registered under CAS 65-06-5. You may also see it listed as Delta1-dihydrotestosterone, 1-Testo, 17beta-Hydroxy-5alpha-androst-1-en-3-one. Our catalogue number for this item is ZX-044500.
What are the formula and molar mass of 1-Testosterone?
For 1-Testosterone, its formula is C19H28O2 and its molar mass is 288.4 g/mol. The systematic (IUPAC) name is (5S,8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one. InChIKey OKJCFMUGMSVJBG-ABEVXSGRSA-N lets you match it in any structure database.
How is 1-Testosterone used in pharmaceutical QC?
1-Testosterone is a characterised reference material linked to Testosterone. 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 1-Testosterone?
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 1-Testosterone?
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 1-Testosterone to my country?
Yes. Because 1-Testosterone 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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