77988-03-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77988-03-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,8 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77988-03:
(7*7)+(6*7)+(5*9)+(4*8)+(3*8)+(2*0)+(1*3)=195
195 % 10 = 5
So 77988-03-5 is a valid CAS Registry Number.
77988-03-5Relevant academic research and scientific papers
Derivatives of 2-Methylenepenam: Analogues of Clavulanic Acid
Brain, Edward G.,Broom, Nigel J. P.,Hickling, Roger I.
, p. 892 - 896 (2007/10/02)
Some substituted 2-methylenepenams have been synthesised by ring closure of acetylenic azetidinone-thiols.Substituents on the methylene group include aryl, hydroxymethyl, and alkoxycarbonylvinyl.
