99299-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99299-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,9 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99299-21:
(7*9)+(6*9)+(5*2)+(4*9)+(3*9)+(2*2)+(1*1)=195
195 % 10 = 5
So 99299-21-5 is a valid CAS Registry Number.
99299-21-5Relevant academic research and scientific papers
Resolution of Ketones via Chiral Acetals. Kinetic Approach
Mori, Atsunori,Yamamoto, Hisashi
, p. 5444 - 5446 (2007/10/02)
When a chiral acetal is treated with triisobutylaluminum at low temperature, one diastereoisomer reacts much faster than the other and the resulting enol ether is transformed to optically pure ketone.
