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114235-33-5

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114235-33-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 114235-33-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,4,2,3 and 5 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 114235-33:
(8*1)+(7*1)+(6*4)+(5*2)+(4*3)+(3*5)+(2*3)+(1*3)=85
85 % 10 = 5
So 114235-33-5 is a valid CAS Registry Number.

114235-33-5Relevant articles and documents

DIELS-ALDER REACTIONS USING N-(p-CHLOROSULFONYLPHENYL)MALEIMIDE AS DIENOPHILE

Cremlyn, Richard,Swinbourne, Frederick,Nunes, Ricardo

, p. 65 - 76 (2007/10/02)

N-(p-chlorosulfonylphenyl)maleimide reacts as a dienophile with cyclopentadiene, furan, 2,3-dimethylbutadiene, anthracene, 1,3-cyclohexadiene, 1,2,3,4-tetrachloro-5,5-dimethoxycyclopentadiene, hexachlorocyclopentadiene and tetraphenylcyclopentadienone to give the chlorosulfonyl adducts (2, 10, 18, 24, 32, 40, 48, 56).These were converted into derivatives by reaction with amines, hydrazine and sodium azide.The stereochemistry of the Diels-Alder adducts was determined by NMR spectroscopy of the adducts and their dimethylamides; and the relative ease of addition is discussed.Attempted formation of (2) by chlorosulfonation of the adduct from N-phenylmaleimide and cyclopentadiene was unsuccessful.The spectral data are briefly discussed.

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