670242-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 670242-80-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,0,2,4 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 670242-80:
(8*6)+(7*7)+(6*0)+(5*2)+(4*4)+(3*2)+(2*8)+(1*0)=145
145 % 10 = 5
So 670242-80-5 is a valid CAS Registry Number.
670242-80-5Relevant articles and documents
Modified coumarins. 15. Condensed psoralen derivatives based on substituted dibenzo[b,d]pyran-6-ones
Garazd,Garazd,Khilya
, p. 535 - 540 (2007/10/03)
Benzo[c]furo[3,2-g]chromen-5-ones, modified psoralen analogs containing a substituted benzene ring annelated at the 5,6-position of the furo[3,2-g]chromen-7-one system, were prepared by the MacLeod method. 2004 Springer Science + Business Media, Inc.
