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722-18-9

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722-18-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 722-18-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,2 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 722-18:
(5*7)+(4*2)+(3*2)+(2*1)+(1*8)=59
59 % 10 = 9
So 722-18-9 is a valid CAS Registry Number.

722-18-9Relevant articles and documents

Synthesis of 5-Fluoro-1,3-dioxin-4-ones: Versatile Building Blocks of Fluorinated Compounds

Sato, Masayuki,Kaneko, Chikara,Iwaoka, Tomoyasu,Kobayashi, Yoshiro,Iida, Takao

, p. 699 - 700 (1991)

Fluorination of 5,6-unsubstituted 1,3-dioxin-4-ones by fluorine followed by treatment with triethylamine affords the title compounds, which can be converted into fluorinated derivatives of either formylacetic acid or of heterocyclic systems.

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