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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

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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