81561-90-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81561-90-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,6 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81561-90:
(7*8)+(6*1)+(5*5)+(4*6)+(3*1)+(2*9)+(1*0)=132
132 % 10 = 2
So 81561-90-2 is a valid CAS Registry Number.
81561-90-2Relevant academic research and scientific papers
AN APPROACH TO REGIOSELECTIVE ALKYLATION OF ALKYL β-D-GALACTOPYRANOSIDES THROUGH (TRIALKYLSTANNYL)ATION
Tomoya, Ogawa,Tomoo, Nukada,Masanao, Matsui
, p. 263 - 270 (2007/10/02)
Regioselective preparation of methyl 3,6-di-O-benzyl-β-D-galactopyranoside, methyl 2,4-di-O-benzyl-β-D-galactopyranoside, and mehtyl 3,4-di-O-benzyl-β-D-galactopyranoside by the stannyl method is described.
