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699-35-4

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699-35-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 699-35-4 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 9 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 699-35:
(5*6)+(4*9)+(3*9)+(2*3)+(1*5)=104
104 % 10 = 4
So 699-35-4 is a valid CAS Registry Number.

699-35-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,2,3,3,4,4-hexafluorocyclobutan-1-one

1.2 Other means of identification

Product number -
Other names hexafluorocyclobutanone

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:699-35-4 SDS

699-35-4Relevant articles and documents

Full-PVC butanone synthetic method

-

Paragraph 0024; 0053; 0054; 0055; 0059; 0060; 0061, (2017/08/02)

The invention relates to a synthetic method of perfluorocyclobutanone. According to the method, trifluorochloroethene (I) undergoes thermal polymerization to obtain a dimer (II); then, dechloridation is carried out to obtain hexafluorocyclobutene (III); and hexafluorocyclobutene is oxidized to obtain perfluorocyclobutanone (IV). According to the technology, a trifluorochloroethene synthesis route is used such that perfluorocyclobutanone is easier to prepare. In addition, the technology is safer and more stable; impurities are less; and yield and product quality are also increased correspondingly. The synthetic method is suitable for large-scale production.

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