Pigment Red 21
Name:C.I.Pigment Red 21,C.I.12300
Molecular Structure: Single azo
C.I.Pigment Red 21,C.I.12300,CAS 6410-26-0,401.84,C23H16ClN3O2,Bronze Red,3132 Scarlet Red,Fast Red 2R,Permanent Red FR,Scarlet Powder
Molecular Formula:C23H16ClN3O2
Molecular Weight: 401.84
CAS Registry Number:6410-26-0
Manufacturing Methods : o-Chloroaniline diazotization, and 3-Hydroxy-N-phenyl-2-naphthamide coupling.
Properties and Applications:Brilliant yellow red. Melting point: 241 ℃, (from toluene in crystallization, orange red acicular crystal).
| Light Fastness | Heat resistance(℃ ) | Sodium carbonate(5%) | Muriatic acid(5%) | Oleic acid | PVC migration | Soap micelle bleeding | |
| Melting point | Stable | ||||||
| Excellent | Stable to 150 | unchanging | unchanging | Poor | No | ||
List of Suppliers:
Nantong Zhengyan Pigments Chemical Co., Ltd.
3132 Scarlet Red (Hangzhou Dikai Chemical Co Ltd)
Bronze Red (Sinochem Liaoning Import & Export Corporation)
Bronze Red (Sinochem Ningbo Imp & Exp Corp)
Everbright Bronze Red 3103 (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)
Everbright Fast Red 2R 3132 (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)
Fast Red 2R (Sinochem Liaoning Import & Export Corporation)
Fast Red 2R(3132)(Sinochem Ningbo Imp & Exp Corp)
Permanent Red FR( Hoechst A G )
Pigment Red 21(CPMA)
Scarlet Powder( Shaanxi Foreign Tade )