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674-85-1

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674-85-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 674-85-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,7 and 4 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 674-85:
(5*6)+(4*7)+(3*4)+(2*8)+(1*5)=91
91 % 10 = 1
So 674-85-1 is a valid CAS Registry Number.

674-85-1Downstream Products

674-85-1Relevant articles and documents

Method for producing 4,4,4- Trifluorobutane-2-One

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Page/Page column 7, (2009/09/26)

The present invention provides a novel method for preparing 4,4,4-trifluorobutane-2-one by providing a fluorobutene selected from the group consisting of 2,4,4,4-tetrafluoro-1-butene, (E)-1,1,1,3-tetrafluoro-2-butene, (Z)-1,1,1,3-tetrafluoro-2-butene, and mixture thereof; and reacting the fluorobutene(s) with a proton acid and water.

A METHOD FOR PRODUCING 4,4,4-TRIFLUOROBUTANE-2-ONE

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Page/Page column 25-26; 28, (2008/06/13)

The present invention provides a novel method for preparing 4,4,4-trifluorobutane-2-one by providing a fluorobutene selected from the group consisting of 2,4,4,4-tetrafluoro-1-butene, (E)- 1,1,1,3-tetrafluoro-2-butene, (Z)-1,1,1,3-tetrafluoro-2-butene, and mixture thereof; and reacting the fluorobutene(s) with a proton acid and water.

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