Sulphur Red 7
Name:C.I.Sulphur Red 7,C.I.53810
Molecular Structure:
C.I.Sulphur Red 7,C.I.53810,CAS 1327-97-5
CAS Registry Number:1327-97-5
Manufacturing Methods : N-(6,8,9-trichloro-7-oxo-7H-phenoxazin-2-yl)benzamide and sodium polysulphide aqueous solution in 70 ~ 100 ℃ heating 30 hours, then add salt precipitation. This oxazine is from 1,2,4-Trichloro-7-amino-3H-isophenoxazin-3-one (C.I. Sulphur Blue 12; C.I. 53800 intermediate) and m-nitrobenzoyl chloride and reaction.
Properties and Applications: dark blue light red.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 4 | 3 | 5 | 4 | 2 | ||
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