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Pharmacopeial Impurities (EP / USP / BP)

Timolol EP Impurity A

Reference StandardAvailable on request

Buy Timolol EP Impurity A (CAS 26839-76-9) from Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Timolol EP Impurity A chemical structure
CAS number26839-76-9
FormulaC13H24N4O3S
Molar mass316.42 g/mol
Physical formSolid
HS code38229090
InChIKeyBLJRIMJGRPQVNF-SNVBAGLBSA-N
IUPAC name(2R)-1-(tert-butylamino)-3-[(4-morpholin-4-yl-1,2,5-thiadiazol-3-yl)oxy]propan-2-ol

About Timolol EP Impurity A

Zemixal lists Timolol EP Impurity A for laboratories that identify, quantify or control Timolol and its related substances. Key data (Reference Standard): CAS 26839-76-9, formula C13H24N4O3S and molar mass 316.42 g/mol. It is handled as a solid.

Use cases we see most often

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Safe handling

It carries the GHS signal word Warning (H336), 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. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Timolol

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

Timolol standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Timolol EP Impurity A
Product nameTimolol EP Impurity A
Catalogue numberZX-027285
CAS number26839-76-9
IUPAC name(2R)-1-(tert-butylamino)-3-[(4-morpholin-4-yl-1,2,5-thiadiazol-3-yl)oxy]propan-2-ol
Molecular formulaC13H24N4O3S
Molar mass316.42 g/mol
Exact mass316.1569
GradeReference Standard
Physical formSolid
XLogP31.8
H-bond donors / acceptors2 / 8
Topological polar surface area108 Ų
HS code38229090
InChIKeyBLJRIMJGRPQVNF-SNVBAGLBSA-N
SMILESCC(C)(C)NC[C@H](COC1=NSN=C1N2CCOCC2)O
PubChem CID168613
SynonymsTimolol Maleate - Impurity A, (R)-timolol, (+)-timolol, d-Timolol, (2R)-1-(tert-butylamino)-3-((4-morpholin-4-yl-1,2,5-thiadiazol-3-yl)oxy)propan-2-ol, Timolol, (+)-, (R)-(+)-Timolol, (2r)-1-(tert-butylamino)-3-{[4-(morpholin-4-yl)-1,2,5-thiadiazol-3-yl]oxy}propan-2-ol, Timolol Maleate Impurity 17, 1-(tert-Butylamino)-3-((4-morpholino-1,2,5-thiadiazol-3-yl)oxy)-2-propanol, (R)-1-(tert-Butylamino)-3-((4-morpholino-1,2,5-thiadiazol-3-yl)oxy)propan-2-ol, 2-Propanol, 1-(tert-butylamino)-3-((4-morpholino-1,2,5-thiadiazol-3-yl)oxy)-

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H336May cause drowsiness or dizziness

Precautionary statements P261, P271, P304 + P340, P319, 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 Timolol EP Impurity A
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 Timolol EP Impurity A

Which CAS number identifies Timolol EP Impurity A?
Timolol EP Impurity A is registered under CAS 26839-76-9. You may also see it listed as Timolol Maleate - Impurity A, (R)-timolol, (+)-timolol. Our catalogue number for this item is ZX-027285.
What are the formula and molar mass of Timolol EP Impurity A?
For Timolol EP Impurity A, its formula is C13H24N4O3S and its molar mass is 316.42 g/mol. The systematic (IUPAC) name is (2R)-1-(tert-butylamino)-3-[(4-morpholin-4-yl-1,2,5-thiadiazol-3-yl)oxy]propan-2-ol. InChIKey BLJRIMJGRPQVNF-SNVBAGLBSA-N lets you match it in any structure database.
How is Timolol EP Impurity A used in pharmaceutical QC?
Timolol EP Impurity A is a characterised reference material linked to Timolol. 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 Timolol EP Impurity A?
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 Timolol EP Impurity A?
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 Timolol EP Impurity A to my country?
Yes. Because Timolol EP Impurity A 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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