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Pharmacopeial Impurities (EP / USP / BP)

Dorzolamide EP Impurity A

Reference StandardAvailable on request

Dorzolamide EP Impurity A (CAS 120279-95-0) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-024347.

Pack sizes
Dorzolamide EP Impurity A chemical structure
CAS number120279-95-0
FormulaC10H16N2O4S3
Molar mass324.4 g/mol
Physical formSolid
HS code38229090
InChIKeyIAVUPMFITXYVAF-HTRCEHHLSA-N
IUPAC name(4R,6R)-4-(ethylamino)-6-methyl-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide

About Dorzolamide EP Impurity A

Dorzolamide EP Impurity A belongs to the Dorzolamide reference-standard family in the Zemixal catalogue. Key data (Reference Standard): CAS 120279-95-0, formula C10H16N2O4S3 and molar mass 324.4 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

Storage and safety notes

It carries the GHS signal word Warning (H302, H362 and H373), so wear gloves and eye protection and work with good ventilation.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a certificate of analysis with characterisation data with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Dorzolamide

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

Dorzolamide 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 Dorzolamide EP Impurity A
Product nameDorzolamide EP Impurity A
Catalogue numberZX-024347
CAS number120279-95-0
IUPAC name(4R,6R)-4-(ethylamino)-6-methyl-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide
Molecular formulaC10H16N2O4S3
Molar mass324.4 g/mol
Exact mass324.0272
GradeReference Standard
Physical formSolid
XLogP30.4
H-bond donors / acceptors2 / 7
Topological polar surface area151 Ų
HS code38229090
InChIKeyIAVUPMFITXYVAF-HTRCEHHLSA-N
SMILESCCN[C@@H]1C[C@H](S(=O)(=O)C2=C1C=C(S2)S(=O)(=O)N)C
PubChem CID92087
Synonymsent-Dorzolamide, Dorzolamide - Impurity A, (+)-(Trans)-dorzolamide, Dorzolamide impurity A, Dorzolamide, 4R,6R-, (+)-4R,6R-Dorzolamide, (4R,6R)-Dorzolamide, Dorzolamide, (+)-(trans)-, sulfonamide 5, Dorzolamide, DZA

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
GHS08 Health hazard
Health hazard

Signal word Warning

  • H302Harmful if swallowed
  • H362May cause harm to breast-fed children
  • H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements P203, P260, P263, P264, P270, P301 + P317, P318, P319, P330, 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 Dorzolamide 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 Dorzolamide EP Impurity A

Which CAS number identifies Dorzolamide EP Impurity A?
Dorzolamide EP Impurity A is registered under CAS 120279-95-0. You may also see it listed as ent-Dorzolamide, Dorzolamide - Impurity A, (+)-(Trans)-dorzolamide. Our catalogue number for this item is ZX-024347.
What are the formula and molar mass of Dorzolamide EP Impurity A?
For Dorzolamide EP Impurity A, its formula is C10H16N2O4S3 and its molar mass is 324.4 g/mol. The systematic (IUPAC) name is (4R,6R)-4-(ethylamino)-6-methyl-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide. InChIKey IAVUPMFITXYVAF-HTRCEHHLSA-N lets you match it in any structure database.
How is Dorzolamide EP Impurity A used in pharmaceutical QC?
Dorzolamide EP Impurity A is a characterised reference material linked to Dorzolamide. 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 Dorzolamide 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 Dorzolamide 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 Dorzolamide EP Impurity A to my country?
Yes. Because Dorzolamide 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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