128821-24-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128821-24-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,2 and 1 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128821-24:
(8*1)+(7*2)+(6*8)+(5*8)+(4*2)+(3*1)+(2*2)+(1*4)=129
129 % 10 = 9
So 128821-24-9 is a valid CAS Registry Number.
128821-24-9Relevant articles and documents
New method of synthesis of D-ribose and D-lyxose
Lacourt-Gadras,Grignon-Dubois,Rezzonico
, p. 281 - 288 (2007/10/02)
An attempt has been made to synthesize D-ribose from D-xylose using only commercial products and a minimum number of steps. D-xylose was transformed into pentenofuranoside which then was hydrolyzed. In the pyranose series, the unsaturated derivative could