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(2E,7Z)-9-(tert-Butyl-dimethyl-silanyloxy)-3,7-dimethyl-1-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,7-dien-5-yn-4-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

199007-99-3

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199007-99-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199007-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,0,0 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 199007-99:
(8*1)+(7*9)+(6*9)+(5*0)+(4*0)+(3*7)+(2*9)+(1*9)=173
173 % 10 = 3
So 199007-99-3 is a valid CAS Registry Number.

199007-99-3Relevant academic research and scientific papers

Alkylidene-2H-pyrans by thermal electrocyclic ring closure of (2Z)-divinylallenals

De Lera, Angel R.,Torrado, Alicia,Rey, Jose Garcia,Lopez, Susana

, p. 7421 - 7424 (2007/10/03)

Electrocyclic ring closure of (2Z)-divinylallenals 8 (including the retroretinal derivative 8a), afforded the corresponding alkylidene-2H-pyrans, under very mild conditions (25°C, 48 h). Initially, an equilibrium between 8a and the kinetic product E-9a wa

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