500203-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 500203-99-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,2,0 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 500203-99:
(8*5)+(7*0)+(6*0)+(5*2)+(4*0)+(3*3)+(2*9)+(1*9)=86
86 % 10 = 6
So 500203-99-6 is a valid CAS Registry Number.
500203-99-6Relevant articles and documents
Modified coumarins. 8. Synthesis of substituted 5-(4-methoxyphenyl)-7H-furo[3,2-g] chromen-7-ones
Garazd,Garazd,Ogorodniichuk,Khilya
, p. 539 - 548 (2007/10/03)
The MacLeod method was used to synthesize a series of substituted 5-(4-methoxyphenyl)-7H-furo[3,2-g]chromen-7-ones, modified analogs of psoralen, from 7-hydroxy-4-(4-methoxyphenyl)coumarins.