916987-99-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 916987-99-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,6,9,8 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 916987-99:
(8*9)+(7*1)+(6*6)+(5*9)+(4*8)+(3*7)+(2*9)+(1*9)=240
240 % 10 = 0
So 916987-99-0 is a valid CAS Registry Number.
916987-99-0Relevant articles and documents
Novel fluorinated chromones
Saloutin, V. I.,Skryabina, Z. E.,Bazyl', I. T.,Chupakhin, O. N.
, p. 37 - 42 (1993)
The self-condensation of ethyl pentafluorobenzoylacetate leads to the formation of 3-pentafluorophenyl-1H-isopyrono-6,7,8,9-tetrafluorochromone in 37percent yield.On hydrolysis, this gave 2-pentafluorobenzoylmethyl-5,6,7,8-tetrafluorochromone.Other
