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69814-57-9

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69814-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69814-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,8,1 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 69814-57:
(7*6)+(6*9)+(5*8)+(4*1)+(3*4)+(2*5)+(1*7)=169
169 % 10 = 9
So 69814-57-9 is a valid CAS Registry Number.

69814-57-9Downstream Products

69814-57-9Relevant articles and documents

Relationship between Reaction Rates and NMR Chemical Shifts in the Reaction of Cyclic Ketene Acetals with Methanol

Fukuda, Hiroyuki,Hirota, Masahiro,Endo, Takeshi

, p. 1587 - 1590 (2007/10/02)

The reaction of cyclic ketene acetals with methanol gave the corresponding cyclic orthoacetates in fairly good yield.The linear relationship between their reaction rates and 1H or 13C NMR chemical shifts of unsaturated methylene groups was obtained from the kinetic studies.

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