90629-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90629-05-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,6,2 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 90629-05:
(7*9)+(6*0)+(5*6)+(4*2)+(3*9)+(2*0)+(1*5)=133
133 % 10 = 3
So 90629-05-3 is a valid CAS Registry Number.
90629-05-3Relevant academic research and scientific papers
AN EFFICIENT CARBAPENEM SYNTHESIS VIA AN INTRAMOLECULAR WITTIG REACTION OF NEW TRIALKOXYPHOSPHORANE-THIOLESTERS
Yoshida, Akira,Tajima, Yawara,Takeda, Noriko,Oida, Sadao
, p. 2793 - 2796 (2007/10/02)
New trialkoxyphosphorane-thiolesters 10, obtained by reaction of oxalimides 9 with trialkyl phosphite, were efficiently cyclized by an intramolecular Wittig reaction to give carbapenems 11.
