![(4R,6S)-5,6-Dihydro-4-hydroxy-6-methylthieno[2,3-b]thiopyran-7,7-dioxide chemical structure](/media/structures/NFUQUGUUAUVBMO-CAHLUQPWSA-N.svg)
(4R,6S)-5,6-Dihydro-4-hydroxy-6-methylthieno[2,3-b]thiopyran-7,7-dioxide
- CAS
- 147128-77-6
- Formula
- C8H10O3S2
- MW
- 218.3 g/mol
VQ-022437
Impurity reference standards
Dorzolamide impurities & reference standards
Characterised Dorzolamide impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
21reference materials
1isotope-labelled
COAHPLC · NMR · MS on request
2-Desaminosulfonyl 3-Aminosulfonyl Dorzolamide
- CAS
- 199734-71-9
- Formula
- C10H16N2O4S3
- MW
- 324.4 g/mol
VQ-022438
![5,6-Dihydro-4-hydroxy-6-methyl-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-Dioxide chemical structure](/media/structures/ZXSUWHJGLUHKPC-UHFFFAOYSA-N.svg)
5,6-Dihydro-4-hydroxy-6-methyl-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-Dioxide
- CAS
- 120279-26-7
- Formula
- C8H11NO5S3
- MW
- 297.4 g/mol
VQ-043919
Dorzolamide N-Sulfonamide Dimer Sodium Salt
- CAS
- 1417579-07-7
- Formula
- C20H29N3NaO8S6
- MW
- 654.84 g/mol
VQ-045149
![N-((4S,6S)-6-Methyl-7,7-dioxido-2-sulfamoyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl)acetamide chemical structure](/media/structures/MQRCTNZVQVRCRD-XNCJUZBTSA-N.svg)
N-((4S,6S)-6-Methyl-7,7-dioxido-2-sulfamoyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl)acetamide
- CAS
- 147200-03-1
- Formula
- C10H14N2O5S3
- MW
- 338.4 g/mol
VQ-022440
FAQs — Dorzolamide impurities
Which Dorzolamide impurities do you supply?
We list 21 Dorzolamide-related reference materials, including process impurities, degradation products, stable-isotope-labelled standards and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.
What are Dorzolamide impurity standards used for?
They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).
Can you synthesise a Dorzolamide impurity that is not listed?
Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.
Request Dorzolamide impurity standards
We reply within one business day with price, pack options, lead time and documentation.