141993-01-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141993-01-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,9,9 and 3 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 141993-01:
(8*1)+(7*4)+(6*1)+(5*9)+(4*9)+(3*3)+(2*0)+(1*1)=133
133 % 10 = 3
So 141993-01-3 is a valid CAS Registry Number.
141993-01-3Relevant articles and documents
Synthesis and antibacterial activity of C4 substituted monobactams
Arnould,Boutron,Pasquet
, p. 131 - 140 (2007/10/02)
The synthesis and antibacterial activity of a series of monobactams having substituents at C4 position is described. An efficient route to versatile intermediates 4a-c from 6-aminopenicillanic acid (6-APA) has been developed. Derivatives 10e, 11, 21 showe