204986-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 204986-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,9,8 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 204986-91:
(8*2)+(7*0)+(6*4)+(5*9)+(4*8)+(3*6)+(2*9)+(1*1)=154
154 % 10 = 4
So 204986-91-4 is a valid CAS Registry Number.
204986-91-4Relevant academic research and scientific papers
Tetraalkylmethanes as synthetic lubricants
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, (2008/06/13)
Tetraalkylmethanes are synthetic lubricants. The preferred structure contains four straight chain alkyl groups which may be the same or different and have from 1 to 2 or 5 to 14 carbon atoms. Mixtures are also disclosed as are novel methods for preparation of the tetraalkylmethanes.
