The CAS Registry Mumber 72987-47-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,8 and 7 respectively; the second part has 2 digits, 4 and 7 respectively. Calculate Digit Verification of CAS Registry Number 72987-47: (7*7)+(6*2)+(5*9)+(4*8)+(3*7)+(2*4)+(1*7)=174 174 % 10 = 4 So 72987-47-4 is a valid CAS Registry Number.
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Get Best Price for72987-47-4Benzoic acid, 4-[[1-hydroxy-6-[[[[5-hydroxy- 6-(phenylazo)-7-sulfo-2-naphthalenyl]amino]carbonyl ]amino]-3-sulfo-2-naphthalenyl]azo]-, compd. with α,α',α''- (nitrilotri-2,1-ethanediyl)tris[ω-hydroxypoly (oxy-1,2-ethanediyl)] (1:3)