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34726-90-4

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34726-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34726-90-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,7,2 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 34726-90:
(7*3)+(6*4)+(5*7)+(4*2)+(3*6)+(2*9)+(1*0)=124
124 % 10 = 4
So 34726-90-4 is a valid CAS Registry Number.

34726-90-4Relevant articles and documents

NUCLEOPHILIC REACTION AT A VINYL CENTER. XXII. SYNTHESIS AND NUCLEOPHILIC VINYLIC SUBSTITUTION IN E-β-FLUOROVINYL ARYL SULFONES

Shainyan, B. A.,Mirskova, A. N.

, p. 61 - 66 (2007/10/02)

The reaction of potassium fluoride with E-β-bromovinyl aryl sulfones in the presence of 18-crown-6-ether leads to a mixture of the sulfones XC6H4SO2CH2CHF2 and E-XC6H4SO2CH=CHF, the ratio of which decreases in the order X=CH3, H, Cl, NO2.The kinetics of n

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