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199387-53-6

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199387-53-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199387-53-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,3,8 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 199387-53:
(8*1)+(7*9)+(6*9)+(5*3)+(4*8)+(3*7)+(2*5)+(1*3)=206
206 % 10 = 6
So 199387-53-6 is a valid CAS Registry Number.

199387-53-6Downstream Products

199387-53-6Relevant articles and documents

Formation of Thioaldehyde Intermediates by Thermolysis of Sulfoxides Bearing Some Heteroaromatics

Morita, Hiroyuki,Takeda, Masahiro,Fujii, Takayoshi,Yoshimura, Toshiaki,Shimasaki, Choichiro

, p. 9018 - 9023 (2007/10/03)

Thermal reactions of phenacyl sulfoxide bearing heterocycles, such as a 2-benzothiazolyl or N-oxypyridyl group, in the presence of 2,3-dimethyl-1,3-butadiene afforded 6-benzoyl-5,6-dihydro-3,4-dimethyl-2H-thiapyran in good yield. This product is considered to be formed by the Diels-Alder reaction of a diene with thioaldehyde formed initially by the decomposition of sulfoxides.

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