141271-56-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141271-56-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,2,7 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 141271-56:
(8*1)+(7*4)+(6*1)+(5*2)+(4*7)+(3*1)+(2*5)+(1*6)=99
99 % 10 = 9
So 141271-56-9 is a valid CAS Registry Number.
141271-56-9Relevant academic research and scientific papers
Total synthesis of 6-epi-erythronolide derivatives
Mulzer,Mareski,Buschmann,Luger
, p. 215 - 228 (2007/10/02)
A concise convergent synthesis of 6-epi-erythronolide B 3,5-acetonide and of (9R)-dihydro-6-epi-erythronolide B from (R)-2,3-O-isopropylideneglyceraldehyde is described. The key step in the synthesis involves the coupling of two aldehydes, comprising the
