307549-78-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 307549-78-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,7,5,4 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 307549-78:
(8*3)+(7*0)+(6*7)+(5*5)+(4*4)+(3*9)+(2*7)+(1*8)=156
156 % 10 = 6
So 307549-78-6 is a valid CAS Registry Number.
307549-78-6Relevant articles and documents
Modified coumarins. 3. Psoralen and allopsoralen analogs
Garazd,Garazd,Shilin,Khilya
, p. 409 - 420 (2007/10/03)
1,2,3,4-Tetrahydro-5H-benzo[c]furo[3,2-g]chromen-5-ones and 8,9,10,11-tetrahydro-7H-benzo[c]furo[2,3-f]chromen-7-ones, analogs of psoralen and allopsoralen, were synthesized from 1-hydroxy- and 3-hydroxy-7,8,9,10-tetrahydro-6H-benzo[c]chromen-6-ones.
