The CAS Registry Mumber 78286-93-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,2,8 and 6 respectively; the second part has 2 digits, 9 and 3 respectively. Calculate Digit Verification of CAS Registry Number 78286-93: (7*7)+(6*8)+(5*2)+(4*8)+(3*6)+(2*9)+(1*3)=178 178 % 10 = 8 So 78286-93-8 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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