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191719-87-6

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191719-87-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191719-87-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,7,1 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 191719-87:
(8*1)+(7*9)+(6*1)+(5*7)+(4*1)+(3*9)+(2*8)+(1*7)=166
166 % 10 = 6
So 191719-87-6 is a valid CAS Registry Number.

191719-87-6Relevant articles and documents

1,3-Oxathiane ring formation through intramolecular Pummerer reaction of alkyl ortho-hydroxymethylphenyl sulfoxides

Abe, Hitoshi,Shibaike, Kentaro,Fujii, Hiroyuki,Tsuchida, Daisuke,Akiyama, Teruaki,Harayama, Takashi

, p. 291 - 298 (2007/10/03)

The intramolecular Pummerer rearrangement of 2-(2-alkyl-sulfinylphenyl)- 2-propanols (1a, 1c-1g) yielded 1,3-oxathianes (2a, 2c-2g) in the presence of p-toluenesulfonic acid and molecular sieves 3A. Alkyl halides were converted into 1,3-oxathiane derivatives in three steps via this rearrangement.

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