194039-87-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 194039-87-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,4,0,3 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 194039-87:
(8*1)+(7*9)+(6*4)+(5*0)+(4*3)+(3*9)+(2*8)+(1*7)=157
157 % 10 = 7
So 194039-87-7 is a valid CAS Registry Number.
194039-87-7Relevant articles and documents
Production of fluormethyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether
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Paragraph 0047-0049, (2015/09/28)
A process for removing water from a mixture comprising hydrogen fluoride and water, said process comprising: a) providing a mixture comprising hydrogen fluoride and water; and b) removing water from the mixture as a constant boiling mixture with hydrogen fluoride.
