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98167-65-8

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98167-65-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98167-65-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,1,6 and 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 98167-65:
(7*9)+(6*8)+(5*1)+(4*6)+(3*7)+(2*6)+(1*5)=178
178 % 10 = 8
So 98167-65-8 is a valid CAS Registry Number.

98167-65-8Relevant 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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