1-(4-Chlorophenyl)-3-[(3R,4R)-3-(hydroxymethyl)-8-methoxy-3,4-dihydro-2H-1-benzopyran-4-yl]-3-methylurea CAS 318951-56-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 318951-56-3 |
| Molecular Formula | C19H21ClN2O4 |
| Molecular Weight | 376.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(4-Chlorophenyl)-3-[(3R,4R)-3-(hydroxymethyl)-8-methoxy-3,4-dihydro-2H-1-benzopyran-4-yl]-3-methylurea (CAS 318951-56-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H21ClN2O4. Molecular weight: 376.83 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H21ClN2O4 |
| Molecular Weight | 376.83 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
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- 4-[3-(4-Chlorophenyl)-3-oxo-1-propenyl]phenyl 2-phenylacetate (CAS 331460-85-6)
- (3E)-1-[(4-Chlorophenyl)methyl]-3-[(4-methoxyphenyl)imino]-2,3-dihydro-1H-indol-2-one (CAS 478031-80-0)
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Recommended Standards
- Glafenine-d4 (CAS 1794783-64-4)
- 1142204-44-1 9301AC C19H21ClN2O4 [(2-{[2-(4-Chlorophenyl)ethyl]amino}-2-oxoethyl)-(4-methoxyphenyl)amino]acetic acid (CAS 1142204-44-1)
- 1142204-34-9 9296AC C19H21ClN2O4 [(2-{[2-(2-Chlorophenyl)ethyl]amino}-2-oxoethyl)-(4-methoxyphenyl)amino]acetic acid (CAS 1142204-34-9)
- (2,5-dimethylphenyl)(phenyl)methanamine hydrochloride (CAS 1796948-30-5)
- 4-Oxo-6-((pyrimidin-2-ylthio)methyl)-4H-pyran-3-yl 4-methoxybenzoate (CAS 877635-49-9)
- 5-Azaindole-2-carboxylic acid, 97% (CAS 800401-65-4)
- (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-((4-methyl-2-oxo-2H-chromen-7-yl)amino)-4-oxobutanoic acid (CAS 238084-15-6)
- N,N-diethyl-2-(phenylsulfonyl)acetamide (CAS 163019-28-1)
- 1-[3-(1,3-benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]acetone (CAS 1000932-94-4)
- Neuropeptide Y (porcine) trifluoroacetate salt (CAS 83589-17-7)
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