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75180-19-7

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75180-19-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75180-19-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,1,8 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 75180-19:
(7*7)+(6*5)+(5*1)+(4*8)+(3*0)+(2*1)+(1*9)=127
127 % 10 = 7
So 75180-19-7 is a valid CAS Registry Number.

75180-19-7Downstream Products

75180-19-7Relevant articles and documents

A Stereoselective Reduction of Polyfluorinated Olefins. A Facile Conversion of Difluoromethylene Olefins to Fluoromethylene Olefins via Vinyl Phsphoranes and Vinyl Phosphonium Salts

Burton, Donald J.,Shin-Ya, Seiji,Howells, Richard D.

, p. 543 - 546 (1980)

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Process for Producing 2-Chloro-1,3,3,3-Tetrafluoropropene

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Paragraph 0089; 0090, (2015/02/19)

Disclosed is a process for producing 2-chloro-1,3,3,3-tetrafluoropropene (1224), including a first step of separating 2,3-dichloro-1,1,1,3-tetrafluoropropane 234da) into erythro form and threo form, and a second step of bringing the separated erythro form or threo form in contact with a base to obtain 2-chloro-1,3,3,3-tetrafluoropropene (1224). The first step is a step of separating 234da by distillation to achieve a separation into a fraction containing mainly erythro form and a fraction containing mainly threo form. In the second step, 1224 cis form is obtained from the erythro form, and 1224 trans form is obtained from the threo form. By this process, it is possible to selectively and efficiently produce cis form or trans form of 2-chloro-1,3,3,3-tetrafluoropropene (1224).

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