4,4＇-Diantipyrylmethane Monohydrate CAS 1251-85-0
| CAS No. | 1251-85-0 |
| Molecular Formula | C23H24N4O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4,4＇-Diantipyrylmethane Monohydrate (CAS 1251-85-0), a certified reference material (molecular formula C23H24N4O2H2O, MW 406.49 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 4,4＇-Diantipyrylmethane Monohydrate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 406.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4,4＇-Diantipyrylmethane Monohydrate 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.
Physical & Chemical Properties
| Molecular Formula | C23H24N4O2 H2O |
| Molecular Weight | 406.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
Recommended Standards
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- Potassium 5,6-dicarboxypyrazine-2,3-dicarboxylate (CAS 54722-63-3)
- tert-Butyl 3,4-diaminopiperidine-1-carboxylate (CAS 1779435-19-6)
- Ticagrelor Impurity 89 (CAS 2056269-94-2)
- 4-Bromo-N-(cyclopropylmethyl)-3-fluorobenzamide (CAS 515135-58-7)
- 5,6-Dihydro-4H-pyrrolo[1,2-β]pyrazole-2-carboxylic acid (CAS 796729-03-8)
- Benzenepentanoic acid, α-[2-(phenylmethoxy)phenoxy]- (CAS 2007915-55-9)
- 1-(4-Fluorobenzyl)-4-isothiocyanato-3,5-dimethyl-1h-pyrazole (CAS 1004193-64-9)
- 8-Hydroxy-6-oxo-1,3,4,6-tetrahydro-2H-quinolizine-9-carboxylic acid (CAS 61486-98-4)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
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