229648-90-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 229648-90-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,9,6,4 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 229648-90:
(8*2)+(7*2)+(6*9)+(5*6)+(4*4)+(3*8)+(2*9)+(1*0)=172
172 % 10 = 2
So 229648-90-2 is a valid CAS Registry Number.
229648-90-2Relevant articles and documents
An enantiocontrolled synthesis of the masked taxol C-13 side chain, oxazoline carboxylic acid
Kang, Sung Ho,Kim, Cheol Min,Youn, Joo-Hack
, p. 3581 - 3582 (2007/10/03)
Oxazoline carboxylic acid 6 as the taxol side chain precursor has been efficiently synthesized via the intramolecular iodoamidation of allylic trichloroacetimidate derived from trans-olefinic diol 1.