The CAS Registry Mumber 37042-18-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,0,4 and 2 respectively; the second part has 2 digits, 1 and 8 respectively. Calculate Digit Verification of CAS Registry Number 37042-18: (7*3)+(6*7)+(5*0)+(4*4)+(3*2)+(2*1)+(1*8)=95 95 % 10 = 5 So 37042-18-5 is a valid CAS Registry Number.
Reactions of 3-acylchromones with CH-acidic compounds. 35. Studies on 4-pyrones
Eiden,Schnikorr
, p. 187 - 193 (2007/10/08)
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