Pyrazolo[5,1-b]thiazole-7-carboxylic acid CAS 1510356-99-6
| CAS No. | 1510356-99-6 |
| Molecular Formula | C6H4N2O2S |
| Molecular Weight | 168.17 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 Pyrazolo[5,1-b]thiazole-7-carboxylic acid.
Pyrazolo[5,1-b]thiazole-7-carboxylic acid (CAS 1510356-99-6), molecular formula C6H4N2O2S and molecular weight 168.17 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H4N2O2S, Pyrazolo[5,1-b]thiazole-7-carboxylic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 168.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), Pyrazolo[5,1-b]thiazole-7-carboxylic acid 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 | C6H4N2O2S |
| Molecular Weight | 168.17 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.) | 1992 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Pyrazolo Standards
- 4H-Pyrazolo[3,4-d]pyrimidin-4-one, 3-fluoro-1,5-dihydro-1-methyl- (CAS 54738-72-6)
- pyraZolo[1,5-a]pyrimidine-3,6-dicarbonitrile (CAS 339029-86-6)
- 1H-Pyrazolo[4,3-c]quinoline (CAS 233-46-5)
- 1-(1H-pyrazolo[3,4-b]pyridin-5-yl)ethanone (CAS 1256794-87-2)
- 1H-Pyrazolo[3,4-f]quinoxaline (CAS 127763-31-9)
- 1H-pyrazolo[3,4-b]quinoxaline (CAS 269-75-0)
- 2H-Pyrazolo[3,4-b]quinoxaline (CAS 863637-42-7)
- pyrazolo[1,5-a]pyridine-5-carboxylic acid (CAS 104468-87-3)
Recommended Standards
- Thieno[2,3-b]pyrazine-2,3(1H,4H)-dione (CAS 149587-32-6)
- 2-Fluoro-5-methoxybenzimidamide (CAS 152335-99-4)
- Methyl 3-(1,2,3-thiadiazol-4-yl)propiolate (CAS 1484873-02-0)
- 2-Fluoro-4-methoxybenzimidamide (CAS 1542679-31-1)
- N-cyclohexyl-1-(4-hydroxy-7-(3-methoxyphenyl)thieno[3,2-d]pyrimidin-2-yl)piperidine-3-carboxamide (CAS 1242986-30-6)
- N-(4-Aminophenyl)-2-[2-(sec-butyl)phenoxy]-butanamide (CAS 1020055-97-3)
- (4,6-Dichloropyrimidin-5-yl)(2-methylpyridin-3-yl)methanone (CAS 1416373-37-9)
- N1-benzyl-N2-(2,3-dichlorophenyl)oxalamide (CAS 306742-85-8)
- Brequinar (CAS 96187-53-0)
- γ-Linolenic Acid N-Hydroxysuccinimidyl Ester (CAS 216447-57-3)
- N-(2-(Imidazo[1,2-a]pyridin-2-yl)ethyl)-4-methoxybenzamide (CAS 868977-66-6)
- tert-Butyl(4'-(aminomethyl)-[1,1'-biphenyl]-4-yl)carbamate (CAS 811842-12-3)
- Neratinib Impurity 53 (CAS CATO-C4X-113453)
- Neuropeptide Y, human (CAS 98264-90-5)
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