190248-05-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190248-05-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,2,4 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 190248-05:
(8*1)+(7*9)+(6*0)+(5*2)+(4*4)+(3*8)+(2*0)+(1*5)=126
126 % 10 = 6
So 190248-05-6 is a valid CAS Registry Number.
190248-05-6Relevant articles and documents
Synthesis and resolution of a new chiral C2-symmetric bisphenol: Trans-1,2-bis(2-hydroxyphenyl)cyclopentane
Whitesell, James K.,Apodaca, Richard
, p. 2589 - 2592 (1997)
The title compound was prepared in six steps from dicumarol. Subsequent resolution with O-methylmandelic acid gave either enantiomer in ≤98% ee.