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870091-88-6

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870091-88-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 870091-88-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,0,0,9 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 870091-88:
(8*8)+(7*7)+(6*0)+(5*0)+(4*9)+(3*1)+(2*8)+(1*8)=176
176 % 10 = 6
So 870091-88-6 is a valid CAS Registry Number.

870091-88-6Relevant articles and documents

The reaction mechanism of spirocylization and stereoselectivity studies for the calyculin C16-C25 fragment

Rauhala, Vesa,Naettinen, Kalle,Rissanen, Kari,Koskinen, Ari M. P.

, p. 4119 - 4126 (2007/10/03)

The mechanism of the double intramolecular hetero-Michael addition, a key reaction in the planned synthesis of the natural product calyculin C, has been studied by NMR. The cyclization follows Baldwin's rules and proceeds first through a six-membered ring

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