1020730-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1020730-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,0,7,3 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1020730-91:
(9*1)+(8*0)+(7*2)+(6*0)+(5*7)+(4*3)+(3*0)+(2*9)+(1*1)=89
89 % 10 = 9
So 1020730-91-9 is a valid CAS Registry Number.
1020730-91-9Relevant academic research and scientific papers
Dark coloured azo dyes
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Page/Page column 22, (2008/06/13)
The present invention relates to d) a non-oxidative colouring agent for keratin fibres, in particular human hair, comprising at least one dye according to formula (I) or (II), e) an oxidative colouring agent for keratin fibres, in particular human hair, w