856899-99-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856899-99-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,8,9 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 856899-99:
(8*8)+(7*5)+(6*6)+(5*8)+(4*9)+(3*9)+(2*9)+(1*9)=265
265 % 10 = 5
So 856899-99-5 is a valid CAS Registry Number.
856899-99-5Relevant articles and documents
Unusual migrations and cyclization in the preparation of β-azido alcohols from β-hydroxy esters
Madhusudhan,Om Reddy,Ramanatham,Dubey
, p. 2719 - 2723 (2007/10/03)
Migration of TBDMS and Boc groups from 2° alcohols to 1° alcohols during the reduction of β-hydroxy esters has been observed. Also, unusual cyclization has been noticed during tosylation of benzylic alcohol in tert-butyl ((2R)-2-hydroxy-2-phenyl ethyl)car
