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68313-93-9

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68313-93-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68313-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,3,1 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 68313-93:
(7*6)+(6*8)+(5*3)+(4*1)+(3*3)+(2*9)+(1*3)=139
139 % 10 = 9
So 68313-93-9 is a valid CAS Registry Number.

68313-93-9Relevant articles and documents

Synthesis and 3'-Substituent Effects of Some 7α-Methoxy-1-oxacephems on Antibacterial Activity and Alkaline Hydrolysis Rates

Narisada, Masayuki,Nishikawa, Junko,Watanabe, Fumihiko,Terui, Yoshihiro

, p. 514 - 522 (2007/10/02)

Relationships between intrinsic antibacterial activity and β-lactam chemical reactivity of 7β-(phenylacetamido)-7α-methoxy-1-oxacephems with various 3'-substituents (1-9) were studied in order to clarify the effect of the 3'-substituent on the antibacteri

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