81661-69-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81661-69-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,6 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81661-69:
(7*8)+(6*1)+(5*6)+(4*6)+(3*1)+(2*6)+(1*9)=140
140 % 10 = 0
So 81661-69-0 is a valid CAS Registry Number.
81661-69-0Relevant academic research and scientific papers
Synthesis of the pentasaccharide chain of the Forsman antigen
Paulsen,Buensch
, p. 143 - 167 (2007/10/02)
The pentasaccharide chain of the Forssman antigen, O-(2-acetamido-2-deoxy-alpha-D-galactopyranosyl)-(1 leads to 3)-O-(2-acetamido-2-deoxy-beta-D-galactopyranosyl)-(1 leads to 3)-O-alpha-D-galactopyranosyl-(1 leads to 4)-O-beta-D-galactopyranosyl-(1 leads