142756-68-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142756-68-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,7,5 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 142756-68:
(8*1)+(7*4)+(6*2)+(5*7)+(4*5)+(3*6)+(2*6)+(1*8)=141
141 % 10 = 1
So 142756-68-1 is a valid CAS Registry Number.
142756-68-1Relevant 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