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Fluorosulfuric acid, 1,2-dichloro-1,2,2-trifluoroethyl ester, also known as 1,2-dichloro-1,2,2-trifluoroethyl fluorosulfonate, is a chemical compound with the molecular formula C2Cl2F3O2S. It is an ester derivative of fluorosulfuric acid, featuring a dichloro-trifluoroethyl group attached to the sulfur atom. Fluorosulfuric acid, 1,2-dichloro-1,2,2-trifluoroethyl ester is highly reactive and corrosive, exhibiting strong electrophilic properties due to the presence of the fluorosulfonate group. It is used in various chemical reactions, particularly in the synthesis of fluorinated compounds and as a reagent in organic synthesis. Due to its hazardous nature, it requires careful handling and storage, and is typically used in well-ventilated areas with appropriate safety measures in place.

681-25-4

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Basic information
1. Product Name: Fluorosulfuric acid, 1,2-dichloro-1,2,2-trifluoroethyl ester
2. Synonyms:
3. CAS NO:681-25-4
4. Molecular Formula: C2Cl2F4O3S
5. Molecular Weight: 250.986
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: Fluorosulfuric acid, 1,2-dichloro-1,2,2-trifluoroethyl ester(CAS DataBase Reference)
10. NIST Chemistry Reference: Fluorosulfuric acid, 1,2-dichloro-1,2,2-trifluoroethyl ester(681-25-4)
11. EPA Substance Registry System: Fluorosulfuric acid, 1,2-dichloro-1,2,2-trifluoroethyl ester(681-25-4)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 681-25-4(Hazardous Substances Data)

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681-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 681-25-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,8 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 681-25:
(5*6)+(4*8)+(3*1)+(2*2)+(1*5)=74
74 % 10 = 4
So 681-25-4 is a valid CAS Registry Number.

681-25-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name	1,2-dichlorotrifluoroethyl fluorosulfate

1.2 Other means of identification

Product number	-
Other names	1,2-Dichlor-trifluorethyl-fluorosulfat

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:681-25-4 SDS

681-25-4Upstream product

681-25-4Downstream Products

354-28-9 2-chloro-2,2-difluoroacetamide

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