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90629-06-4

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90629-06-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90629-06-4 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 6 respectively.
Calculate Digit Verification of CAS Registry Number 90629-06:
(7*9)+(6*0)+(5*6)+(4*2)+(3*9)+(2*0)+(1*6)=134
134 % 10 = 4
So 90629-06-4 is a valid CAS Registry Number.

90629-06-4Relevant articles and documents

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.

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