227946-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 227946-98-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,7,9,4 and 6 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 227946-98:
(8*2)+(7*2)+(6*7)+(5*9)+(4*4)+(3*6)+(2*9)+(1*8)=177
177 % 10 = 7
So 227946-98-7 is a valid CAS Registry Number.
227946-98-7Relevant academic research and scientific papers
Total synthesis of (+)-lactacystin
Panek, James S.,Masse, Craig E.
, p. 1093 - 1095 (2007/10/03)
A double stereodifferentiating crotylation between aldehyde 1 and silane (S)-2 to afford homoallylic alcohol 3 is the key diastereoselective step (anti:syn > 30:1) in an efficient asymmetric synthesis of (+)-lactacystin. This compound is a metabolite isol
