(5-(Benzo[d][1,3]dioxol-5-yl)-1H-pyrazol-1-yl)(4-(tert-butyl)phenyl)methanone CAS 956181-72-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 956181-72-9 |
| Molecular Formula | C21H20N2O3 |
| Molecular Weight | 348.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (5-(Benzo[d][1,3]dioxol-5-yl)-1H-pyrazol-1-yl)(4-(tert-butyl)phenyl)methanone (CAS 956181-72-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H20N2O3. Molecular weight: 348.40 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H20N2O3 |
| Molecular Weight | 348.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Benzo Standards
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- N-(benzo[d][1,2,3]thiadiazol-5-ylcarbamoyl)-4-methylbenzenesulfonamide (CAS 866156-68-5)
- 2-(((1H-Benzo[d]imidazol-2-yl)methyl)thio)-3-allylquinazolin-4(3H)-one (CAS 438574-70-0)
- 1-(3-(Benzo[d]thiazol-2-ylthio)propyl)-3-(5-methylisoxazol-3-yl)urea (CAS 899741-20-9)
- 1-(3-(Benzo[d]thiazol-2-yloxy)azetidin-1-yl)-2-(cyclopentylthio)ethan-1-one (CAS 1788830-79-4)
- 1-(Benzo[d][1,3]dioxol-5-yl)-3-((4-bromophenyl)amino)propan-1-one (CAS 720667-79-8)
- 1-(Benzo[d][1,3]dioxol-5-yl)-3-((4-chloro-3-nitrophenyl)amino)propan-1-one (CAS 892155-46-3)
- Benzo[d]oxazol-2-yl(2-chloro-6-fluorophenyl)methyl ethylcarbamate (CAS 104029-78-9)
Recommended Standards
- ({[4-(isobutylthio)-3-nitrophenyl]sulfonyl}amino)acetic acid (CAS 747410-97-5)
- (E)-3-(4-nitrophenyl)-1-(2,2,4-trimethylquinolin-1(2H)-yl)prop-2-en-1-one (CAS 332019-32-6)
- (S)-Methyl 2-((tert-butoxycarbonyl)amino)-3-((1-methyl-1H-benzo[d]imidazol-2-yl)amino)propanoate (CAS 1956436-26-2)
- 4-Nitrophenyl cyclopropylcarbamate (CAS 444288-42-0)
- 5-Methoxy-2,2-dimethyl-5-oxopentanoic acid (CAS 34601-12-2)
- Eltrombopag impurity 141 (CAS CATO-C4X-1198141)
- 4-Bromo-2-(((3-chlorophenyl)amino)methyl)phenol (CAS 1232785-94-2)
- Olean-12-eno[3,2-c]isoxazol-28-oic acid methyl ester, 97% (CAS 42273-05-2)
- 3-Fluorocatechol (CAS 363-52-0)
- Tirzepatide Impurity 48 (CAS CATO-C4X-324048)
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 13829788188 / jacky.chen@cato-chem.com