The CAS Registry Mumber 78412-84-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,1 and 2 respectively; the second part has 2 digits, 8 and 4 respectively. Calculate Digit Verification of CAS Registry Number 78412-84: (7*7)+(6*8)+(5*4)+(4*1)+(3*2)+(2*8)+(1*4)=147 147 % 10 = 7 So 78412-84-7 is a valid CAS Registry Number.
Hydrogen chloride catalysed condensation of yohimbine with 4-dimethylaminobenzaldehyde. Investigations of the yohimbine color reaction
Pindur
, p. 142 - 147 (2007/12/18)
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