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107390-73-8

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107390-73-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107390-73-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,3,9 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 107390-73:
(8*1)+(7*0)+(6*7)+(5*3)+(4*9)+(3*0)+(2*7)+(1*3)=118
118 % 10 = 8
So 107390-73-8 is a valid CAS Registry Number.

107390-73-8Downstream Products

107390-73-8Relevant articles and documents

Synthesis of Rubraflavone-A Trimethyl Ether

Banerji, A.,Goomer, N. C.

, p. 304 - 305 (2007/10/02)

The synthesis of rubraflavone-A trimethyl ether (1b) involves aroylation of lithium enolate of 2-hydroxy-4-methoxyacetophenone (2) with 2,4-dimethoxybenzoyl chloride to yield β-diketone (3) which is alkylated with geranyl chloride in the presence of K2CO3 to obtain the 1,3-dioxo compound (5).Cyclisation of 5 to rubraflavone-A trimethyl ether (1b) is easily accomplished using acid catalyst.

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