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55234-03-2

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55234-03-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55234-03-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,2,3 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 55234-03:
(7*5)+(6*5)+(5*2)+(4*3)+(3*4)+(2*0)+(1*3)=102
102 % 10 = 2
So 55234-03-2 is a valid CAS Registry Number.

55234-03-2Relevant articles and documents

A New, General Cyclopentenone Synthesis

Ceccherelli, Paolo,Curini, Massimo,Marcotullio, Maria Carla,Rosati, Ornelio,Wenkert, Ernest

, p. 311 - 315 (2007/10/02)

A new synthesis of cyclopentenones, involving an Rh(II)-catalyzed, intramolecular carbon-hydrogen insertion of diazomethyl ketones derived from α,β-unsaturated acids, is described.

Oxidation of Enol Silyl Ethers: Preparation of Aeginetolide, Dihydroactinidiolide, and Actinidiolide

Rubottom, George M.,Juve, Henrik D.

, p. 422 - 425 (2007/10/02)

The preparation of the C11-terpenic lactones aeginetolide (1), dihydroactinidiolide (2), and actinidiolide (3) by using 1,3,3-trimethyl-2-(trimethylsiloxy)cyclohexene (9) as a common precursor is discussed.The key steps in the synthetic route involve the sequential m-chloroperbenzoic acid (MCPBA) oxidation and acetylation of 9 and of the siloxy diene 13 derived from 9.

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