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188816-64-0

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188816-64-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188816-64-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,8,1 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 188816-64:
(8*1)+(7*8)+(6*8)+(5*8)+(4*1)+(3*6)+(2*6)+(1*4)=190
190 % 10 = 0
So 188816-64-0 is a valid CAS Registry Number.

188816-64-0Downstream Products

188816-64-0Relevant articles and documents

Alkyl 2-(2-Benzoyl-2-ethoxycarbonyl-1-ethenyl)amino-3dimethylaminopropenoates in the Synthesis of Heterocyclic Systems

Strah, Sonja,Stanovnik, Branko,Grdadolnik, Simona Golic

, p. 263 - 267 (2007/10/03)

Alkyl 2-(2-benzoyl-2-ethoxycarbonyl-1-ethenyl)amino-3-dimethylaminopropenoates 4a,b were prepared. They react with C-nucleophiles such a 2-pyridinylacetonitrile 5 and methyl-2-quinolinylacetate 8, cyclohexane-1,3-dione 10 and its derivatives 12 and 14, resorcinol derivative 16, 2-naphtol 18, 2-pyranone derivatives 20 and 22, and 4-hydroxypyridin-2(1H)-one 24, to form substituted amino derivatives of quinolizine 6, benzo[c]quinolizine 9, tetrahydrobenzopyran-2-one 11, 13, 15, naphto[2,1-b]pyran-3-one 19, pyranopyranones 21, 23, and pyrano[3,2-c]pyridine 25.

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