3071-71-4 直接耐晒灰BL
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英文别名C.I.Direct Black 103; Diazol Light Grey 4B; 3-[[4-[[4-[(7-Amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-6-sodiosulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]naphthalene-1,5-disulfonic acid disodium salt; Direct Fast Black 2B; Direct Fast Grey L; Direct Grey Light Fast