138691-29-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138691-29-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,9 and 1 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138691-29:
(8*1)+(7*3)+(6*8)+(5*6)+(4*9)+(3*1)+(2*2)+(1*9)=159
159 % 10 = 9
So 138691-29-9 is a valid CAS Registry Number.
138691-29-9Relevant articles and documents
Lithiation of benzene derivatives promoted by β-functionalized alkyl groups. (R)-(-)mellein from (R)-(+)-propylene oxide
Napolitano, Elio
, p. 455 - 456 (2007/10/02)
A β-oxyalkyl group and a 3-methoxymethoxy group cooperatively promote the lithiation of the benzene ring at the position 2
