4-(Hydroxymethylene)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one CAS 4702-79-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4702-79-8 |
| Molecular Formula | C11H10N2O2 |
| Molecular Weight | 202.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(Hydroxymethylene)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (CAS 4702-79-8), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C11H10N2O2. Molecular weight: 202.21 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C11H10N2O2 |
| Molecular Weight | 202.21 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Hydroxymethylene Standards
- 2-Benzyl-4-(hydroxymethylene)oxazol-5(4H)-one (CAS 332095-91-7)
- 3-(Hydroxymethylene)-7-methoxyindolin-2-one (CAS 1018523-45-9)
- 3-(Hydroxymethylene)-5-methoxyindolin-2-one (CAS 1018549-00-2)
- 3-(Hydroxymethylene)-6-methoxyindolin-2-one (CAS 1824813-94-6)
- 3-(Hydroxymethylene)-4-methoxyindolin-2-one (CAS 1824866-07-0)
- (Z)-6-(Hydroxymethylene)-4-methyl-4-vinylcyclohex-2-en-1-one (CAS 1375080-89-9)
- (E)-6-(Hydroxymethylene)-2-methyl-7,8-dihydroquinazolin-5(6H)-one (CAS 112372-34-6)
- 4-(Hydroxymethylene)-2-phenyloxazol-5(4H)-one (CAS 65037-88-9)
Recommended Standards
- 4-(Hydroxymethyl)-5-(phenylamino)-2H-pyrrol-2-one (CAS 55876-73-8)
- 4,4A,7,7a-tetrahydro-4,7-ethenocyclobuta[f]isobenzofuran-1,3(3aH,6aH)-dione (CAS 4602-96-4)
- 4-(Hydroxymethyl)-2-naphthoic acid (CAS 79996-85-3)
- 2-{3-oxo-2h,3h,5h,6h,7h,8h-[1,2,4]triazolo[4,3-a]pyridin-2-yl}acetic acid (CAS 1406928-10-6)
- 1-(2-Iodo-4-methoxyphenyl)ethan-1-one (CAS 90347-63-0)
- 25767-20-8 2,7,12,17-Porphinetetrapropionic acid, 3,8,13,18-tetramethyl-, tetramethyl ester (8CI) Tetramethyl 3,8,13,18-tetramethyl-21H,23H-porphine-2,7,12,17-tetrapropionate 21H,23H-Porphine-2,7,12,17-tetrapropanoic acid, 3,8,13,18-tetramethyl-, 2,7,12,17-tetramethyl ester 21H,23H-Porphine-2,7,12,17-tetrapropanoic acid, 3,8,13,18-tetramethyl-, tetramethyl ester Coproporphyrin I tetramethyl ester EINECS 247-253-5 NSC 89196 (CAS 25767-20-8)
- Methyl 4-nitrooxanthrene-2-carboxylate (CAS 924843-92-5)
- N-(2-fluorophenyl)-3-(4-methoxyphenyl)isoxazole-5-carboxamide (CAS 320422-13-7)
- 4-Methyl-2-(4-methyl-piperazin-1-yl)-quinolin-6-ylamine (CAS 710328-09-9)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
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