70138-37-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70138-37-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,1,3 and 8 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 70138-37:
(7*7)+(6*0)+(5*1)+(4*3)+(3*8)+(2*3)+(1*7)=103
103 % 10 = 3
So 70138-37-3 is a valid CAS Registry Number.
70138-37-3Relevant articles and documents
Synthesis of Novel Biodegradable Poly(amide-Ester)s from Penicillin
Saotome, Yasushi,Miyazawa, Takeo,Endo, Takeshi
, p. 1885 - 1888 (2007/10/02)
Novel biodegradable poly(amide-ester)s were succesfully synthesized from antibiotic penicillin, utilizing a nucleophilic addition of primary amines to the β-lactam ring of penicillin.
