9-(4-Chlorobenzylidene)-9H-fluorene CAS 1229-71-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1229-71-6 |
| Molecular Formula | C20H13Cl |
| Molecular Weight | 288.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 9-(4-Chlorobenzylidene)-9H-fluorene (CAS 1229-71-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H13Cl. Molecular weight: 288.77 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C20H13Cl |
| Molecular Weight | 288.77 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Chlorobenzylidene Standards
- N'-(2-Chlorobenzylidene)-3-isopropyl-1H-pyrazole-5-carbohydrazide (CAS 303106-35-6)
- 2-(4-Chlorobenzylidene)-6-hydroxy-4-methylbenzofuran-3(2H)-one (CAS 903868-79-1)
- 2-(4-Chlorobenzylidene)-6-methoxybenzofuran-3(2H)-one (CAS 87931-11-1)
- N-(2-Chlorobenzylidene)-4-methylbenzenesulfonamide (CAS 150552-84-4)
- N-(4-Chlorobenzylidene)-4-methylbenzenesulfonamide (CAS 3157-65-1)
- 4-(4-Chlorobenzylidene)-2-phenyloxazol-5(4H)-one (CAS 15601-44-2)
- (Z)-4-(2-chlorobenzylidene)-2-phenyloxazol-5(4h)-one (CAS 77435-90-6)
- (Z)-4-(4-chlorobenzylidene)-2-phenyloxazol-5(4h)-one (CAS 57427-77-7)
Recommended Standards
- [4-(1-Methyl-1-phenylethyl)phenoxy]acetyl chloride (CAS 1092300-03-2)
- 2-Chloro-4-(4-t-butylphenyl)benzoic acid (CAS 1261955-02-5)
- 3-(4-Chloro-3-methylphenyl)-7-methyl-4,6,7,8-tetrahydrocinnolin-5(1H)-one (CAS 1024547-41-8)
- N-(1-Cyanocyclopentyl)-2-((5-(p-tolylamino)-1,3,4-thiadiazol-2-yl)thio)acetamide (CAS 863415-50-3)
- Fmoc-Lys(Me)3-OH chloride (CAS 201004-29-7)
- 4-[4-(Methylsulfonyl)-3-nitrophenyl]morpholine (CAS 1353497-55-8)
- Spiro[3.3]Heptan-2-ylhydrazine (CAS 2280372-86-1)
- 6-Ethynyl-1,1,4,4-tetramethyl-1,2,3,4-tetrahydronaphthalene (CAS 119362-54-8)
- Potassium (2-chloropyridin-3-yl)trifluoroborate (CAS 1201899-19-5)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
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