217439-29-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 217439-29-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,4,3 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 217439-29:
(8*2)+(7*1)+(6*7)+(5*4)+(4*3)+(3*9)+(2*2)+(1*9)=137
137 % 10 = 7
So 217439-29-7 is a valid CAS Registry Number.
217439-29-7Relevant academic research and scientific papers
Corey,Li, Wei-Dong Z.
, p. 8043 - 8046 (1998)
The synthesis of two diastereomers of lactacystin β-lactone (2), the β-lactones 3 and 4, is described.