83057-19-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83057-19-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,0,5 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 83057-19:
(7*8)+(6*3)+(5*0)+(4*5)+(3*7)+(2*1)+(1*9)=126
126 % 10 = 6
So 83057-19-6 is a valid CAS Registry Number.
83057-19-6Relevant academic research and scientific papers
Chroman derivatives and their preparation
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, (2008/06/13)
Chroman derivatives of the general formula I STR1 where A--B is --CH2 --CH2 --(Ia), --CH=CH--(Ib), --CHOH--CH2 --(Ic) or --CO--CH2 --(Id), R1 is --CH2 --O--R' or STR2 where R' is C1/s