137232-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137232-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,3 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 137232-55:
(8*1)+(7*3)+(6*7)+(5*2)+(4*3)+(3*2)+(2*5)+(1*5)=114
114 % 10 = 4
So 137232-55-4 is a valid CAS Registry Number.
137232-55-4Relevant academic research and scientific papers
Regioselective Protection Strategies for D-Xylopyranosides
Helm, Richard F.,Ralph, John,Anderson, Laurens
, p. 7015 - 7021 (2007/10/02)
The acylation of D-xylopyranosides can be effected at any position by selective hydroxyl activation with dibutyltin oxide in refluxing benzene and proper choice of starting anomer.Methyl 4-O-benzyl-β-D-xylopyranoside, available from methyl 2,3-O-isopropyl
