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71958-91-3

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71958-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71958-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,5 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71958-91:
(7*7)+(6*1)+(5*9)+(4*5)+(3*8)+(2*9)+(1*1)=163
163 % 10 = 3
So 71958-91-3 is a valid CAS Registry Number.

71958-91-3Downstream Products

71958-91-3Relevant articles and documents

MERCURY(II)-PROMOTED CYCLIZATION OF SOME 2-ALKENYLPHENOLS AND SOME CYCLIC 2-ALKENYL-1,3-DIKETONES, 3-KETO ESTERS, AND 3-KETO AMIDES: SYNTHESIS OF 2,3-DIHYDROFURAN, 3,4-DIHYDRO-2H-PYRAN, AND 2,3,4,5-TETRAHYDROOXEPIN RINGS FUSED ON CARBOCYCLIC OR ON OXYGEN

Bravo, Pierfrancesco,Vita, Cristina De,Ticozzi, Calimero,Viani, Fiorenza,Cavicchio, Giancarlo

, p. 441 - 448 (2007/10/02)

Treatment of 4-hydroxy-3-(substituted 3-buten-1-yl)-2H-pyran-2-ones, 4-hydroxy-3-(substituted 3-buten-1-yl)-2(1H)-quinolinones, 2-(substituted 3-buten-1-yl)-1,3-cyclohexanediones and 2-(substituted 3-buten-1-yl)phenols with mercuric acetate in tetrahydrof

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