31611-84-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31611-84-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,6,1 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31611-84:
(7*3)+(6*1)+(5*6)+(4*1)+(3*1)+(2*8)+(1*4)=84
84 % 10 = 4
So 31611-84-4 is a valid CAS Registry Number.
InChI:InChI=1/C17H14Br4O/c18-13(11-7-3-1-4-8-11)14(19)15(20)16(21)17(22)12-9-5-2-6-10-12/h1-10,13-16H
31611-84-4Relevant articles and documents
Method for brominating cinnamalacetophenone
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, (2008/06/13)
An improved method for brominating cinnamalacetophenone is characterized by the use of a saturated aliphatic hydrocarbon as the reaction medium, recycling of the reaction medium as a mother liquor, and the alternating use of stoichiometric amounts and less-than-stoichiometric amounts of bromine in the preparation of cinnamalacetophenone tetrabromide.