5-Tributylstannyl-1h-pyrazole-3-carboxylic acid ethyl ester CAS 141998-85-8
| CAS No. | 141998-85-8 |
| Molecular Formula | C18H34N2O2Sn |
| Molecular Weight | 429.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-Tributylstannyl-1h-pyrazole-3-carboxylic acid ethyl ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
5-Tributylstannyl-1h-pyrazole-3-carboxylic acid ethyl ester (CAS 141998-85-8) is a high-purity analytical reference standard with the molecular formula C18H34N2O2Sn and a molecular weight of 429.18 g/mol.
5-Tributylstannyl-1h-pyrazole-3-carboxylic acid ethyl ester (C18H34N2O2Sn) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H34N2O2Sn |
| Molecular Weight | 429.18 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 2 |
Related Tributylstannyl Standards
- 8-(Tributylstannyl)isoquinoline (CAS 1245816-24-3)
- 4-(Tributylstannyl)quinoline (CAS 1272412-64-2)
- N-(2-(Tributylstannyl)propylidene)cyclohexanamine (CAS 62281-48-5)
- Ethyl-5-(tributylstannyl)isoxazole-3-carboxylate (CAS 126085-91-4)
- Methyl 5-(tributylstannyl)-2-thiazolecarboxylate (CAS 1447763-56-5)
- 1245816-17-4 2-[5-(Tributylstannyl)-1,3-thiazol-2-yl]propan-2-ol DTXSID40676723 (CAS 1245816-17-4)
- 1-Phenyl-5-(tributylstannyl)-1H-pyrazole (CAS 141998-89-2)
- 2-(Tributylstannyl)benzo[d]thiazole (CAS 105445-58-7)
Recommended Standards
- Chloroprocaine impurity 2 (CAS CATO-C4X-32862)
- N-(4-fluorophenyl)-2-(4-formyl-2-iodo-6-methoxyphenoxy)acetamide (CAS 552854-23-6)
- Opicapone Impurity 41 (CAS CATO-C4X-240441)
- 2-Iodo-5-nitro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1186501-78-9)
- 1-Methyl-1,2,3,4-tetrahydroquinazolin-2-one (CAS 19270-60-1)
- 3-(Ethoxycarbonyl)-5-methylisoxazole-4-carboxylic acid (CAS 474678-51-8)
- (+)-2,3-O-Isopropylidene-L-threitol (4S,5S)-(+)-2,2-Dimethyl-1,3-dioxolane-4,5-dimethanol (4S,5S)-(+)-4,5-Bis(hydroxymethyl)-2,2-dimethyl-1,3-dioxolane 50622-09-8 I0376 (CAS 50622-09-8)
- Ethyl 2-cyano-2-cyclobutylideneacetate (CAS 90972-11-5)
- 4-(1,4,7,10-Tetraoxa-13-azacyclopentadecan-13-yl)benzaldehyde (CAS 66749-96-0)
- 2-Ethylidenecyclohexanone (CAS 1122-24-3)
- Methyl 2-amino-4-(4-methoxyphenyl)-5-methylthiophene-3-carboxylate (CAS 350989-87-6)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)pyrimidine-2,4(1H,3H)-dione (CAS 250714-11-5)
- 2-(4-(Difluoromethyl)-2-iodo-6-(trifluoromethyl)pyridin-3-yl)acetic acid (CAS 1807013-46-2)
- Liraglutide Impurity 25 (CAS CATO-C4X-199225)
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