Methyl 1,3-dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylate CAS 675819-58-6
| CAS No. | 675819-58-6 |
| Molecular Formula | C9H10N2O2S |
| Molecular Weight | 210.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 1,3-dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Methyl 1,3-dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylate (CAS 675819-58-6), a certified reference material (molecular formula C9H10N2O2S, MW 210.25 g/mol) for analytical method development and quality control.
Methyl 1,3-dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylate (C9H10N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C9H10N2O2S |
| Molecular Weight | 210.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- (2,2-Dimethyl-1,3-dioxolan-4-yl)methyl methanesulfonate (CAS 84806-02-0)
- 2-(1,5-Dimethyl-1H-pyrazol-4-ylimino)-thiazolidin-4-one (CAS 1003993-33-6)
- 3-(1,3-Dimethyl-1H-pyrazol-4-yl)-2-thioxoimidazolidin-4-one (CAS 1004020-66-9)
- 1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carbohydrazide (CAS 676997-68-5)
- 3,7-Dimethyl-6-(methylthio)-3,7-dihydro-2H-purin-2-one (CAS 38759-27-2)
- 3-(1-Ethyl-3,5-dimethyl-1h-pyrazol-4-yl)-2-methylpropanoic acid (CAS 1007514-82-0)
- 2-(2,5-Dimethyl-1-phenyl-1H-pyrrol-3-yl)acetonitrile (CAS 100869-86-1)
- Dimethyl 2-allyl-2-(prop-2-yn-1-yl)malonate (CAS 107428-06-8)
Recommended Standards
- Methanesulfonic acid [(R)-2,2-dimethyl-[1,3]dioxolan-4-yl]methyl ester (CAS 83461-40-9)
- Methyl 2-(4-(methylthio)phenyl)-2-oxoacetate (CAS 211510-26-8)
- ethyl 6-methylpyrazolo[5,1-b]thiazole-2-carboxylate (CAS 2771252-33-4)
- Methyl 4-thioureidobenzoate (CAS 71680-93-8)
- TG6-129, >98% (HPLC) (CAS 1164464-14-5)
- 2-Cyano-3-(4-(naphthalen-1-ylmethoxy)phenyl)acrylamide (CAS 357229-21-1)
- 3,3,4-Trichlorobenzophenone (CAS 812684-89-2)
- 2-(3-Fluoro-5-(methoxymethoxy)-2-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2763160-09-2)
- 1-bromo-4-(2-chloroethyl)-2-fluorobenzene (CAS 1370600-53-5)
- 2,5-Dimethyl-3-(2,5-dimethylphenyl)propiophenone (CAS 898753-54-3)
- Avatrombopag Impurity 32 (CAS 41667-95-2)
- 2,3-Pentadienoic acid ethyl ester 74268-51-2 Ethyl 2,3-pentadienoate (CAS 74268-51-2)
- 3-{[4-(sec-Butyl)-2-chlorophenoxy]-methyl}piperidine hydrochloride (CAS 1220032-83-6)
- Epidermal Growth Factor Receptor Peptide (985-996) (CAS 96249-43-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com