437702-30-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 437702-30-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,7,7,0 and 2 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 437702-30:
(8*4)+(7*3)+(6*7)+(5*7)+(4*0)+(3*2)+(2*3)+(1*0)=142
142 % 10 = 2
So 437702-30-2 is a valid CAS Registry Number.
437702-30-2Relevant articles and documents
Coupler for use in oxidative hair dyeing
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, (2008/06/13)
Couplers for hair coloring compositions for oxidative dyeing of hair are compounds of the formula at least one coupler comprising a compound of the formula (1): wherein R is selected from of C1to C2alkyl and hydroxyethyl, R1/su