CAS 2051-90-3 Dichlorodiphenylmethane (HCID 16327)

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Basic information

CAS: 2051-90-3
Standard SMILES: ClC(Cl)(c1ccccc1)c1ccccc1
InChIKey: OPTDDWCXQQYKGU-UHFFFAOYSA-N
Molecular formula: C13H10Cl2
Average molar mass: 237.12 g/mol
Monoisotopic mass: 236.01595568

Names & identifiers

Preferred name: Dichlorodiphenylmethane
IUPAC: [dichloro(phenyl)methyl]benzene
English name: Diphenyldichloromethane
Molecular formula: C13H10Cl2
Molecular weight: 237.12

Names & synonyms

Dichlorodiphenylmethane2051-90-3Benzophenone dichlorideBenzene, 1,1'-(dichloromethylene)bis-alpha,alpha-DichlorodiphenylmethaneDPM (halocarbon)Methane, dichlorodiphenyl-DICHLORODIPHENYL METHANEUNII-81FEZ29AK6NSC 37425(Dichloro)diphenylmethaneDichloro(diphenyl)methane

Show more names

α,α-DichlorodiphenylmethaneDichloroditaneTIMTEC-BB SBB007844Benzophenone chlorideDIPHENYLDICHLOROMETHANEDphenyl Dichloro Methane

.alpha.,.alpha.-Dichlorodiphenylmethane81FEZ29AK6EINECS 218-134-5NSC-37425DTXSID9062148RefChem:133062DTXCID2036328Methane, dichlorodiphenyl-(8CI)

Database identifiers

CAS: 2051-90-3
PubChem CID: 16327
DTXSID: DTXSID9062148
UNII: 81FEZ29AK6
EC Number: 218-134-5
Nikkaji: J23.149E

Properties

Computed structural properties

XLogP: 4.5
Topological polar surface area: 0 Å²
Hydrogen bond donors: 0
Hydrogen bond acceptors: 0
Rotatable bonds: 2
Heavy atoms: 15
Formal charge: 0
Complexity: 169

Experimental & physicochemical properties

SpringerMaterials PropertiesDensity

Physicochemical properties

Melting point: 190 °C · 190 °C (decomp)
Boiling point: 305 °C · 305 °C(lit.)
Density: 1.235 g/mL · 1.235 g/mL at 25 °C(lit.)
refractive index: 20 · n20/D 1.605(lit.)
Flash point: 230 °F · >230 °F
storage temp.: 30 °C · Store below +30°C.
solubility: Benzene (Sparingly), Chloroform (Slightly)
form: Liquid
color: Clear light yellow
Water Solubility: Soluble in water (reacts), ether, benzene, ethanol, and toluene.
BRN: 1910601 · 1910601
InChI: InChI=1S/C13H10Cl2/c14-13(15,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H

Safety & regulation

GHS classification

GHS Classification · 4 items

Danger

H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

P260, P261, P264, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P319, P321, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 44 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 2 items

Chemical: Benzene, 1,1'-(dichloromethylene)bis-

Dichlorodiphenylmethane: Does not have an individual approval but may be used under an appropriate group standard

Hazard Classes and CategoriesSkin Corr. 1B (100%)

Safety data

F: 9-21
PPE: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
wgk: 3
tsca: TSCA listed
ridadr: UN 3265 8/PG 2
hs_code: 29036990
risk_code: 14-34-37
Signal word: Danger
Symbol(GHS): GHS05
hazard_code: C
safety_code: 26-36/37/39-45
hazard_class: 8
Storage Class: 8A - Combustible corrosive hazardous materials
packing_group

Chemistry & industry

Uses & manufacturing

General Manufacturing InformationBenzene, 1,1'-(dichloromethylene)bis-: ACTIVE

Applications · 1 item

Usesα,α-Dichlorodiphenylmethane is a degradation product of of polychloroaromatic insecticides such as Dicofol (D436700) and DDT. It is also used as a catalyst for photodegradation of plastics. It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals.

Preparation methods · 1 item

PreparationDichlorodiphenylmethane is synthesized by the condensation of benzene with carbon tetrachloride (Friedel-Crafts reaction). Add aluminum trichloride and 2/3 amount of anhydrous carbon tetrachloride into the reaction tank, cool to 10-15°C, add 1/12 amount of benzene for reaction, continue to cool to 5-10°C, add the remaining mixture of carbon tetrachloride and benzene dropwise, add after, react at 10°C for 3h.