27689-97-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27689-97-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,6,8 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 27689-97:
(7*2)+(6*7)+(5*6)+(4*8)+(3*9)+(2*9)+(1*7)=170
170 % 10 = 0
So 27689-97-0 is a valid CAS Registry Number.
27689-97-0Relevant articles and documents
Synthesis method of crude carboxylic ester (by machine translation)
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Paragraph 0021; 0022, (2020/08/09)
The method is characterized in that the carboxylic ester and the ether are prepared by reacting a carboxylic ester with an ether at a certain temperature under the catalysis of a catalyst at a certain pressure for a certain time. (by machine translation)
