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65782-17-4

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65782-17-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 65782-17-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,7,8 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 65782-17:
(7*6)+(6*5)+(5*7)+(4*8)+(3*2)+(2*1)+(1*7)=154
154 % 10 = 4
So 65782-17-4 is a valid CAS Registry Number.

65782-17-4Downstream Products

65782-17-4Relevant articles and documents

Oxonium Ions in Organic Synthesis: Condensation of 2,3-Dihydrofuran and 3,4-Dihydro-2H-pyran with 1,3-Dicarbonyl Compounds

Bihovsky, Ron,Kumar, Mudubagilu Udaya,Ding, Shuji,Goyal, Arun

, p. 4291 - 4293 (1989)

2,3-Dihydrofuran (3a) and 3,4-dihydro-2H-pyran (3b) condense with a variety of β-keto esters and cyclic or acyclic β-diketones (or their enol tautomers) in the presence of trifluoroacetic acid, to form 2-(tetrahydrofuran-2-yl)-1,3-dicarbonyl (6) and 2-(te

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