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697-15-4

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697-15-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 697-15-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,9 and 7 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 697-15:
(5*6)+(4*9)+(3*7)+(2*1)+(1*5)=94
94 % 10 = 4
So 697-15-4 is a valid CAS Registry Number.

697-15-4Upstream product

697-15-4Downstream Products

697-15-4Relevant articles and documents

Reaction system for preparing tetrafluoroethane-β-sultone and preparation method using the same

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Paragraph 0144-0145, (2017/12/27)

The present invention relates to a reaction system for preparing tetrafluoroethane-andbeta;-sultone and to a preparation method using the same. By using the reaction system for preparing tetrafluoroethane-andbeta;-sultone and the preparation method using the same, tetrafluoroethane-andbeta;-sultone can be prepared safely and easily at a high yield and a high purity at normal temperature and normal pressure, rapid heat generation can be avoided and the risk of explosion in processes due to pressurization is reduced, so that the reaction system and the preparation method are usefully used to prepare energy-related materials such as fuel cell electrolytes and the like derived from tetrafluoroethane-andbeta;-sultone, and in particular, are usefully used to prepare fluorine-based ionomers.COPYRIGHT KIPO 2017

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