94142-99-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 94142-99-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,1,4 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 94142-99:
(7*9)+(6*4)+(5*1)+(4*4)+(3*2)+(2*9)+(1*9)=141
141 % 10 = 1
So 94142-99-1 is a valid CAS Registry Number.
94142-99-1Relevant academic research and scientific papers
SYNTHESIS OF PYRENE DERIVATIVES
Chaikovskii, V. K.,Novikov, A. N.
, p. 1350 - 1352 (2007/10/02)
The direct iodination of pyrene with the I2-HIO3-H2SO4 system gives a mixture of 1,6- and 1,8-diiodopyrenes with a preponderance of 1,6-diiodopyrene.Increase in the reaction temperature to 100 deg C leads to an increase in the yield of the second isomer.I
