JW 67 CAS 442644-28-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 442644-28-2 |
| Molecular Formula | C21H18N2O6 |
| Molecular Weight | 394.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
JW 67 (CAS 442644-28-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H18N2O6. Molecular weight: 394.38 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H18N2O6 |
| Molecular Weight | 394.38 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Diethyl 5-hydroxy-1-(2-(2-nitrophenyl)acetyl)pyrrolidine-2,2-dicarboxylate (CAS 66709-35-1)
- Phenobarbital N-b-D-Glucoside (CAS 72209-10-0)
- 6,8-Dihydroxypyrene-1,3-disulfonic acid (CAS 85353-28-2)
- 2,5-Dioxo-1-pyrrolidinyl (αS)-α-[[(1,1-dimethylethoxy)carbonyl]amino]benzeneacetate (CAS 201152-47-8)
- 2-Chloro-n-[(4-fluorophenyl)(thiophen-2-yl)methyl]acetamide (CAS 875160-08-0)
- Nintedanib Impurity 103 (CAS CATO-C4X-1814103)
- (R)-4-(2-(1-Ethyl-1H-pyrrol-2-yl)ethyl)-4-methyloxazolidin-2-one (CAS 566938-47-4)
- [6-[6-[3-[1-[(2R,4S,5R)-5-[[bis(4-methoxyphenyl)-phenyl-methoxy]methyl]-4-[2-cyanoethoxy-(diisopropylamino)phosphanyl]oxy-tetrahydrofuran-2-yl]-2,4-dioxo-pyrimidin-5-yl]prop-2-enoylamino]hexylcarbamoyl]-6'-(2,2-dimethylpropanoyloxy)-3-oxo-spiro[isobenzofuran-1,9'-xanthene]-3'-yl] 2,2-dimethylpropanoate (CAS 1194507-30-6)
- 1-(3-Bromophenyl)-N-methylethanamine (CAS 118761-98-1)
- Tirzepatide Impurity 36 (CAS CATO-C4X-324036)
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