Cas 103499-80-5,(3E)-5,5-dimethyl-1-phenyl-3-hexen-1-one

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103499-80-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103499-80-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,4,9 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 103499-80:
(8*1)+(7*0)+(6*3)+(5*4)+(4*9)+(3*9)+(2*8)+(1*0)=125
125 % 10 = 5
So 103499-80-5 is a valid CAS Registry Number.

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103499-80-5Relevant articles and documents

Base-Induced α-Alkenylation of Ethyl Bromoacetate, Phenacyl Bromide, and Chloroacetonitrile via B-trans -1-Alkenyl-9-borabicyclononanes

Brown, Herbert C.,Bhat, Narayan G.,Campbell, James B.

, p. 3398 - 3400 (1986)

B-trans-1-Alkenyl-9-borabicyclononanes, easily and quantitatively prepared by the reaction of 9-BBN with various 1-alkynes in tetrahydrofuran, undergo facile reaction with α-halo carbanions generated from ethyl bromoacetate, phenacyl bromide, and c

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103499-80-5