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Pharmacopeial Impurities (EP / USP / BP)

Timolol EP Impurity G

Reference StandardAvailable on request

Order Timolol EP Impurity G (CAS 75202-36-7) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-032665.

Pack sizes
Timolol EP Impurity G chemical structure
CAS number75202-36-7
FormulaC6H9N3O3S
Molar mass203.22 g/mol
Physical formSolid
HS code38229090
InChIKeyAAYSTAZTUCBWCK-UHFFFAOYSA-N
IUPAC name4-morpholin-4-yl-1-oxo-1,2,5-thiadiazol-3-one

About Timolol EP Impurity G

Timolol EP Impurity G is supplied by Zemixal as a characterised reference material for Timolol analysis. Key data (Reference Standard): CAS 75202-36-7, formula C6H9N3O3S and molar mass 203.22 g/mol. It is handled as a solid.

Where it is used

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

Handling and storage

Classified under GHS with signal word Warning and hazard statements H302, H312, H315 and H319. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

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 G
Product nameTimolol EP Impurity G
Catalogue numberZX-032665
CAS number75202-36-7
IUPAC name4-morpholin-4-yl-1-oxo-1,2,5-thiadiazol-3-one
Molecular formulaC6H9N3O3S
Molar mass203.22 g/mol
Exact mass203.0365
GradeReference Standard
Physical formSolid
XLogP3-1.3
H-bond donors / acceptors1 / 5
Topological polar surface area90.2 Ų
HS code38229090
InChIKeyAAYSTAZTUCBWCK-UHFFFAOYSA-N
SMILESC1COCCN1C2=NS(=O)NC2=O
PubChem CID15961581
SynonymsTimolol Impurity G, Timolol Maleate - Impurity G (Freebase), 4-(Morpholin-4-yl)-1,2,5-thiadiazol-3(2H)-one 1-oxide, 1,2,5-Thiadiazol-3(2H)-one, 4-(4-morpholinyl)-, 1-oxide, 3-Hydroxy-4-morpholino-1,2,5-thiadiazole 1-Oxide, Timolol Maleate Impurity G, 4-Morpholino-1,2,5-thiadiazol-3(2H)-one 1-oxide, 4-(4-Morpholinyl)-1,2,5-thiadiazol-3(2H)-one 1-Oxide, 4-morpholino-1-oxo-1,2,5-thiadiazol-3-one

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

  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P337 + P317, 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 Timolol EP Impurity G
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 G

Which CAS number identifies Timolol EP Impurity G?
Timolol EP Impurity G is registered under CAS 75202-36-7. You may also see it listed as Timolol Impurity G, Timolol Maleate - Impurity G (Freebase), 4-(Morpholin-4-yl)-1,2,5-thiadiazol-3(2H)-one 1-oxide. Our catalogue number for this item is ZX-032665.
What are the formula and molar mass of Timolol EP Impurity G?
For Timolol EP Impurity G, its formula is C6H9N3O3S and its molar mass is 203.22 g/mol. The systematic (IUPAC) name is 4-morpholin-4-yl-1-oxo-1,2,5-thiadiazol-3-one. InChIKey AAYSTAZTUCBWCK-UHFFFAOYSA-N lets you match it in any structure database.
How is Timolol EP Impurity G used in pharmaceutical QC?
Timolol EP Impurity G 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 G?
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 G?
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 G to my country?
Yes. Because Timolol EP Impurity G 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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