Cas 139958-86-4,Benzamide, 2-methoxy-N,3-dimethyl-

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Check Digit Verification of cas no

The CAS Registry Mumber 139958-86-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,5 and 8 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139958-86:
(8*1)+(7*3)+(6*9)+(5*9)+(4*5)+(3*8)+(2*8)+(1*6)=194
194 % 10 = 4
So 139958-86-4 is a valid CAS Registry Number.

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139958-86-4Relevant articles and documents

Synthesis of some mellein derivatives

Bhide, B H,Akolkar, V D,Brahmbhatt, D I

, p. 116 - 117 (2007/10/02)

Synthesis of some mellein derivatives (IIIa-d) have been carried out using o-lithiation reaction. o-Lithiation of substituted N-methylbenzamides (Ia-d) and with n-BuLi followed by alkylation with propylene oxide gives 3-methyl-3,4-dihydroisocoumarins (IIa-c) and 5,6-dimethoxymellein (IIId). (IIa-c) have been converted to IIIa-c by HBr/AcOH or anhyd.AlCl3.

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139958-86-4