670233-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 670233-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,0,2,3 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 670233-19:
(8*6)+(7*7)+(6*0)+(5*2)+(4*3)+(3*3)+(2*1)+(1*9)=139
139 % 10 = 9
So 670233-19-9 is a valid CAS Registry Number.
670233-19-9Relevant academic research and scientific papers
Convenient synthesis of the main tridehydropentapeptide skeleton for a macrocyclic antibiotic, sulfomycin I
Kayano, Tetsuya,Yonezawa, Yasuchika,Shin, Chung-Gi
, p. 72 - 73 (2007/10/03)
A convenient synthesis of the main tridehydropentapeptide skeleton [Fragment B-C derivative] of a thiostrepton-type macrocyclic antibiotic, sulfomycin I, was first achieved.
