104127-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104127-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,1,2 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 104127-77:
(8*1)+(7*0)+(6*4)+(5*1)+(4*2)+(3*7)+(2*7)+(1*7)=87
87 % 10 = 7
So 104127-77-7 is a valid CAS Registry Number.
104127-77-7Relevant academic research and scientific papers
SYNTHESIS OF 6-SULFONYLMETHYLENE, 6-SULFINYLMETHYLENE- AND SPIROPYRAZOLINE-PENICILLANIC ACIDS
Haebich, Dieter,Metzger, Karl
, p. 289 - 296 (2007/10/02)
The synthesis of the title compounds 1, analogs of 6-acetylmethylenepenicillanic acid, and their products of diazomethane addition 2 are described.Their β-lactamase inhibiting activity is briefly discussed.
