407-09-0 Usage
General Description
1,1-Difluorobutene is a chemical compound with the molecular formula C4H6F2. It is a colorless, flammable gas that is used as an intermediate in the production of pharmaceuticals and agrochemicals. 1,1-Difluorobutene is also used in organic synthesis and as a monomer in the production of polymers. It is a highly reactive compound and requires careful handling due to its flammability and potential for rapid polymerization. This chemical has limited information available regarding its toxicity and environmental impact, so caution should be exercised when using and disposing of 1,1-Difluorobutene.
Check Digit Verification of cas no
The CAS Registry Mumber 407-09-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,0 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 407-09:
(5*4)+(4*0)+(3*7)+(2*0)+(1*9)=50
50 % 10 = 0
So 407-09-0 is a valid CAS Registry Number.
InChI:InChI=1/C4H6F2/c1-2-3-4(5)6/h3H,2H2,1H3
407-09-0Relevant articles and documents
Dehydrofluorination and dehydrogenation of fluorinated alkanes
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, (2008/06/13)
Fluorinated alkanes are converted into correspond-ing unsaturated dehydrofluorination products by contact with a catalyst bed containing γ-fluorided alumina in the presence of a co-reactant gas at a reaction temperature of from about 200°C to about 700°C, the catalyst bed having been prepared by the steps of (a) flowing air over a catalyst bed containing γ-alumina for a contact time of from about 5 seconds to about 150 seconds, at a temperature of from about 600°C to about 750°C, and (b) thereafter flowing hydrogen fluoride over the air-treated catalyst bed at elevated temperature to convert the γ-alumina to γ--fluorided alumina. The co-reactant gas contains oxygen, carbon dioxide or mixtures thereof. The γ-fluorided alumina-containing catalyst may also be utilized to convert 1,1-difluoroethane to its dehydrogenation product, vinylidene fluoride at a reaction temperature of from about 300°C to about 700°C.
