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87268-57-3

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87268-57-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87268-57-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,2,6 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87268-57:
(7*8)+(6*7)+(5*2)+(4*6)+(3*8)+(2*5)+(1*7)=173
173 % 10 = 3
So 87268-57-3 is a valid CAS Registry Number.

87268-57-3Downstream Products

87268-57-3Relevant articles and documents

SYNTHESIS OF HETEROCYCLES ON THE BASIS OF 1,5-DIKETONE HYDRAZONES. 2. OXIDATIVE CYCLIZATION OF δ-BICYCLANONE BIS(PHENYLHYDRAZONES) AS A METHOD FOR THE SYNTHESIS OF SUBSTITUTED 2-PHENYL-4R-Δ1(8a)-OCTAHYDROCINNOLINE-3-SPIROCYCLOHEXANES

Moskovkina, T. V.,Tilichenko, M. N.

, p. 661 - 665 (2007/10/02)

The oxidation of δ-bicyclanone bis(phenylhydrazones) with oxygen or ferric chloride leads to the formation of 2-phenyl-4R-Δ1(8a)-octahydrocinnoline-3-spiro-1'-cyclohexan-2'-one phenylhydrazones.The structures of these compounds were proved by t

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