670233-30-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 670233-30-4 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, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 670233-30:
(8*6)+(7*7)+(6*0)+(5*2)+(4*3)+(3*3)+(2*3)+(1*0)=134
134 % 10 = 4
So 670233-30-4 is a valid CAS Registry Number.
670233-30-4Relevant articles and documents
Convenient synthesis of the main tridehydropentapeptide skeleton for a macrocyclic antibiotic, sulfomycin I
Kayano, Tetsuya,Yonezawa, Yasuchika,Shin, Chung-Gi
, p. 72 - 73 (2004)
A convenient synthesis of the main tridehydropentapeptide skeleton [Fragment B-C derivative] of a thiostrepton-type macrocyclic antibiotic, sulfomycin I, was first achieved.
