Ethyl 3-amino-1H-thieno[3,2-c]pyrazole-5-carboxylate CAS 648411-36-3
| CAS No. | 648411-36-3 |
| Molecular Formula | C8H9N3O2S |
| Molecular Weight | 211.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 3-amino-1H-thieno[3,2-c]pyrazole-5-carboxylate.
CATO supplies Ethyl 3-amino-1H-thieno[3,2-c]pyrazole-5-carboxylate (CAS 648411-36-3), a certified reference material (molecular formula C8H9N3O2S, MW 211.24 g/mol) for analytical method development and quality control.
Ethyl 3-amino-1H-thieno[3,2-c]pyrazole-5-carboxylate (C8H9N3O2S) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Ethyl 3-amino-1H-thieno[3,2-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.
Physical & Chemical Properties
| Molecular Formula | C8H9N3O2S |
| Molecular Weight | 211.24 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 | 3 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
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Recommended Standards
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- N-(1H-indazol-4-yl)methanesulfonamide (CAS 685109-08-4)
- 2-chloro-6-methoxy-3-methylquinoxaline (CAS 1218765-14-0)
- 2-(2-Methylphenyl)-5-(thiophen-2-yl)-1,3,4-oxadiazole (CAS 478260-90-1)
- 4-Ethoxy-2-phenyl-1H-imidazole (CAS 53386-01-9)
- cis-N1,N1-dimethylcyclobutane-1,3-diamine;dihydrochloride (CAS 2242491-39-8)
- Methyl 2-(methylamino)-6-nitrobenzoate (CAS 90558-05-7)
- 2-(3-((N-Ethylacetamido)methyl)piperidin-1-yl)acetic acid (CAS 1353953-21-5)
- 2-Methyl-6-(piperidin-2-yl)pyridine (CAS 22070-09-3)
- Sivelestat Impurity 7 (CAS 1071827-84-3)
- Methyl 3-amino-2,2-bis(cyclohexylmethyl)propanoate hydrochloride (CAS 1255098-86-2)
- Acetyl-Exenatide trifluoroacetate salt (CAS 305815-28-5)
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