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82551-55-1

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82551-55-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82551-55-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,5,5 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 82551-55:
(7*8)+(6*2)+(5*5)+(4*5)+(3*1)+(2*5)+(1*5)=131
131 % 10 = 1
So 82551-55-1 is a valid CAS Registry Number.

82551-55-1Relevant articles and documents

SYNTHESIS OF OXAPENEM DERIVATIVES BY NOVEL REDUCTIVE CYCLIZATION

Ihara, Masataka,Nakayama, Atsushi,Fukumoto, Keiichiro,Kametani, Tetsuji

, p. 2489 - 2504 (2007/10/02)

Several 6-ethyl-substituted 1-oxapenem derivatives were synthesized by the application of the established method.Furthermore novel and effective synthesis of oxapenems via reductive cyclization of 2-chloro-2-(4-chloro-3-ethyl-2-oxo-1-azetidinyl)acetoaceta

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