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1171247-83-8

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1171247-83-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1171247-83-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,1,2,4 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1171247-83:
(9*1)+(8*1)+(7*7)+(6*1)+(5*2)+(4*4)+(3*7)+(2*8)+(1*3)=138
138 % 10 = 8
So 1171247-83-8 is a valid CAS Registry Number.

1171247-83-8Downstream Products

1171247-83-8Relevant articles and documents

A convenient method for converting hydroxyacetophenones into their ethylene or trimethylene acetals

Ono, Fumiaki,Takenaka, Hirotaka,Fujikawa, Toshikazu,Mori, Masaki,Sato, Tsuneo

scheme or table, p. 1318 - 1322 (2009/12/07)

Various types of hydroxyacetophenones are efficiently converted into the corresponding ethylene acetals in the presence of ethane-1,2-diol, triisopropyl orthoformate, and a catalytic amount of cerium(III) trifluoromethanesulfonate under mild reaction conditions. The homologous trimethylene acetals can be also prepared in the same way. Georg Thieme Verlag Stuttgart.

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