357271-77-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 357271-77-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,5,7,2,7 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 357271-77:
(8*3)+(7*5)+(6*7)+(5*2)+(4*7)+(3*1)+(2*7)+(1*7)=163
163 % 10 = 3
So 357271-77-3 is a valid CAS Registry Number.
357271-77-3Relevant academic research and scientific papers
Synthesis of the amino sugar from C-1027.
Semmelhack,Jiang,Ho
, p. 2403 - 2406 (2007/10/03)
[reaction: see text] The amino sugar side chain (2) from C-1027Chr was synthesized in 12 steps from mannose. The key reactions are an internal displacement by nitrogen to introduce the cis amino group at C-4 and the methylation of an enolate at C-5.
