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1,1'-(2,2-Dichloroethylidene)bis[4-fluorobenzene], also known as 4,4'-Dichlorodiphenylmethane or DCDM, is an organochlorine compound with the chemical formula C14H10Cl2F2. It is a white crystalline solid that is insoluble in water but soluble in organic solvents. DCDM is primarily used as a chemical intermediate in the production of various pharmaceuticals, agrochemicals, and other specialty chemicals. It is also used as a heat transfer fluid in industrial processes. Due to its chemical structure, DCDM has been classified as a persistent organic pollutant (POP) and is subject to international regulations, such as the Stockholm Convention, which aims to eliminate or restrict the production and use of POPs due to their potential environmental and health risks.

603-55-4

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Basic information
1. Product Name: 1,1'-(2,2-Dichloroethylidene)bis[4-fluorobenzene]
2. Synonyms: 1,1'-(2,2-Dichloroethylidene)bis[4-fluorobenzene];DFDD;Difluorodiphenyldichloroethane;1-[2,2-dichloro-1-(4-fluorophenyl)ethyl]-4-fluorobenzene
3. CAS NO:603-55-4
4. Molecular Formula: C₁₄H₁₀Cl₂F₂
5. Molecular Weight: 287.132
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 603-55-4.mol
Chemical Properties
1. Melting Point: 77°
2. Boiling Point: 344.2°Cat760mmHg
3. Flash Point: 188.7°C
4. Appearance: /
5. Density: 1.319g/cm³
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 1,1'-(2,2-Dichloroethylidene)bis[4-fluorobenzene](CAS DataBase Reference)
10. NIST Chemistry Reference: 1,1'-(2,2-Dichloroethylidene)bis[4-fluorobenzene](603-55-4)
11. EPA Substance Registry System: 1,1'-(2,2-Dichloroethylidene)bis[4-fluorobenzene](603-55-4)
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: 603-55-4(Hazardous Substances Data)

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603-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 603-55-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,0 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 603-55:
(5*6)+(4*0)+(3*3)+(2*5)+(1*5)=54
54 % 10 = 4
So 603-55-4 is a valid CAS Registry Number.

603-55-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name	DFDD

1.2 Other means of identification

Product number	-
Other names	Difluorodiphenyldichloroethane

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:603-55-4 SDS

603-55-4Upstream product

603-55-4Downstream Products

574-68-5 4,4'-(2-chloroethene-1,1-diyl)bis(fluorobenzene)

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