2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylic acid
- CAS
- 1312815-35-2
- Formula
- C12H9NO4S
- MW
- 263.27 g/mol
In stock
Impurity reference standards
Febuxostat impurities & reference standards
Characterised Febuxostat impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
57reference materials
1isotope-labelled
COAHPLC · NMR · MS on request
Parent API: Febuxostat
144060-53-7 · C16H16N2O3S
![2-[3-[(Hydroxyimino)methyl]-4-(2-methylpropoxy)phenyl]-4-methyl-5-Thiazolecarboxylic Acid Ethyl Ester chemical structure](/media/structures/XISYIGZAZNITQC-DJKKODMXSA-N.svg)
2-[3-[(Hydroxyimino)methyl]-4-(2-methylpropoxy)phenyl]-4-methyl-5-Thiazolecarboxylic Acid Ethyl Ester
- CAS
- 1271738-74-9
- Formula
- C18H22N2O4S
- MW
- 362.4 g/mol
VQ-025744
![2-[3-Cyano-4-(3-hydroxy-2-methylpropoxy)phenyl]-4-methyl-5-thiazolecarboxylic acid chemical structure](/media/structures/FPODSLPQWIIKKI-UHFFFAOYSA-N.svg)
2-[3-Cyano-4-(3-hydroxy-2-methylpropoxy)phenyl]-4-methyl-5-thiazolecarboxylic acid
- CAS
- 887945-96-2
- Formula
- C16H16N2O4S
- MW
- 332.4 g/mol
VQ-037206
![2-[4-(2-Carboxypropoxy)-3-cyanophenyl]-4-methyl-5-thiazolecarboxylic Acid chemical structure](/media/structures/LCBACLAPKJRMIF-UHFFFAOYSA-N.svg)
2-[4-(2-Carboxypropoxy)-3-cyanophenyl]-4-methyl-5-thiazolecarboxylic Acid
- CAS
- 407582-49-4
- Formula
- C16H14N2O5S
- MW
- 346.4 g/mol
VQ-037208
3-Descyano-3-((hydroxyimino)methyl) Febuxostat
- CAS
- 1350352-70-3
- Formula
- C16H18N2O4S
- MW
- 334.4 g/mol
VQ-030686
4-(2-Methylpropoxy)-1,3-benzenedicarbothioamide
- CAS
- 1330632-46-6
- Formula
- C12H16N2OS2
- MW
- 268.4 g/mol
VQ-025741
Butyl 2-(3-cyano-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate
- CAS
- 1619982-02-3
- Formula
- C20H24N2O3S
- MW
- 372.5 g/mol
VQ-030691
Dimethyl 2,2'-(4-isobutoxy-1,3-phenylene)bis(4-methylthiazole-5-carboxylate)
- CAS
- 1330632-47-7
- Formula
- C22H24N2O5S2
- MW
- 460.6 g/mol
VQ-030692
Ethyl 2-(2-hydroxyphenyl)-4-methylthiazole-5-carboxylate
- CAS
- 118485-48-6
- Formula
- C13H13NO3S
- MW
- 263.31 g/mol
VQ-048348
Ethyl 2-(3-(ethoxycarbonyl)-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate
- CAS
- 1643131-93-4
- Formula
- C20H25NO5S
- MW
- 391.5 g/mol
VQ-030690
Ethyl 2-(3-cyano-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate
- CAS
- 161798-02-3
- Formula
- C14H12N2O3S
- MW
- 288.32 g/mol
VQ-025738
Ethyl 2-(3-cyano-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate
- CAS
- 160844-75-7
- Formula
- C18H20N2O3S
- MW
- 344.4 g/mol
VQ-025735
Ethyl 2-(3-formyl-4-hydroxyphenyl)-4- methylthiazole-5-carboxylate
- CAS
- 161798-01-2
- Formula
- C14H13NO4S
- MW
- 291.32 g/mol
VQ-025728
Ethyl 2-(3-formyl-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate
- CAS
- 161798-03-4
- Formula
- C18H21NO4S
- MW
- 347.4 g/mol
VQ-025742
Ethyl 2-(3,5-diformyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate
- CAS
- 2073891-59-3
- Formula
- C15H13NO5S
- MW
- 319.3 g/mol
VQ-043805
Ethyl 2-(4-butoxy-3-cyanophenyl)-4-methylthiazole-5-carboxylate
- CAS
- 2230270-05-8
- Formula
- C18H20N2O3S
- MW
- 344.4 g/mol
VQ-037211
Ethyl 2-(4-Hydroxyphenyl)-4-methylthiazole-5-carboxylate
- CAS
- 161797-99-5
- Formula
- C13H13NO3S
- MW
- 263.31 g/mol
VQ-030688
Ethyl 2-(4-Hydroxyphenyl)-4-methylthiazole-5-carboxylate Hydrochloride
- CAS
- 399017-10-8
- Formula
- C13H14ClNO3S
- MW
- 299.77 g/mol
VQ-048347
FAQs — Febuxostat impurities
Which Febuxostat impurities do you supply?
We list 57 Febuxostat-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 Febuxostat 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 Febuxostat 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 Febuxostat impurity standards
We reply within one business day with price, pack options, lead time and documentation.