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Diethyl 1,2,2,2-tetrachloroethyl phosphate, also known as DEP, is an organophosphorus compound with the chemical formula C6H10Cl4O4P. It is a colorless, oily liquid that is soluble in organic solvents and has a pungent odor. DEP is primarily used as a plasticizer, flame retardant, and pesticide. It is also an intermediate in the production of other organophosphorus compounds. Due to its potential health risks, including neurotoxicity and endocrine disruption, DEP is classified as a hazardous substance and is subject to strict regulations in many countries.

3957-63-9

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Basic information
1. Product Name: diethyl 1,2,2,2-tetrachloroethyl phosphate
2. Synonyms: Diethyl 1,2,2,2-tetrachloroethyl phosphate; phosphoric acid, diethyl 1,2,2,2-tetrachloroethyl ester
3. CAS NO:3957-63-9
4. Molecular Formula: C₆H₁₁Cl₄O₄P
5. Molecular Weight: 319.9349
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 287.6°C at 760 mmHg
3. Flash Point: 158°C
4. Appearance: N/A
5. Density: 1.475g/cm³
6. Vapor Pressure: 0.00426mmHg at 25°C
7. Refractive Index: 1.477
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: diethyl 1,2,2,2-tetrachloroethyl phosphate(CAS DataBase Reference)
11. NIST Chemistry Reference: diethyl 1,2,2,2-tetrachloroethyl phosphate(3957-63-9)
12. EPA Substance Registry System: diethyl 1,2,2,2-tetrachloroethyl phosphate(3957-63-9)
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: 3957-63-9(Hazardous Substances Data)

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3957-63-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3957-63-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,5 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3957-63:
(6*3)+(5*9)+(4*5)+(3*7)+(2*6)+(1*3)=119
119 % 10 = 9
So 3957-63-9 is a valid CAS Registry Number.

3957-63-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name	diethyl 1,2,2,2-tetrachloroethyl phosphate

1.2 Other means of identification

Product number	-
Other names	Phosphoric acid,diethyl 1,2,2,2-tetrachloroethyl ester

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:3957-63-9 SDS

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