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Diphenylmethane

Diphenylmethane

CAS: 101-81-5

Molecular Formula: C13H12

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Diphenylmethane - Names and Identifiers

Name Diphenylmethane
Synonyms Ditan
Benzylbenzene
Diphenylmethane
diphenyl-methan
Methane, diphenyl-
1,1'-methylenebis-benzen
1,1'-methylenebisbenzene
1,1'-methylenebis-Benzene
1,1'-methanediyldibenzene
Benzene,1,1'-methylenebis-
Diphenyl Methane (101-101-5)
CAS 101-81-5
EINECS 202-978-6
InChI InChI=1/C13H12/c1-3-7-12(8-4-1)11-13-9-5-2-6-10-13/h1-10H,11H2

Diphenylmethane - Physico-chemical Properties

Molecular FormulaC13H12
Molar Mass168.23
Density1.006 g/mL at 25 °C (lit.)
Melting Point22-24 °C (lit.)
Boling Point264 °C (lit.)
Flash Point>230°F
Water Solubility14.1mg/L(25 ºC)
Solubility Soluble in ethanol, ether, chloroform, etc.
Vapor Presure<1 mm Hg ( 77 °C)
Vapor Density5.79 (vs air)
AppearanceColorless crystal
Specific Gravity1.006
ColorColorless to pale yellow
Merck14,3328
BRN1904982
pKa33.5(at 25℃)
Storage ConditionStore below +30°C.
Explosive Limit0.69-8.66%(V)
Refractive Indexn20/D 1.577(lit.)
MDLMFCD00004781
Physical and Chemical PropertiesCharacteristics of colorless needle-like crystal, orange flavor.
melting point 25.3 ℃
boiling point 264.3 ℃
relative density 1.006 (liquid)
refractive index 1.5753
solubility insoluble in water, soluble in ethanol, ether, chloroform, benzene and cyclohexane.
UseUsed as an intermediate in organic synthesis

Diphenylmethane - Risk and Safety

Hazard SymbolsXn - Harmful
Harmful
Risk Codes22 - Harmful if swallowed
Safety DescriptionS24/25 - Avoid contact with skin and eyes.
S58 -
S54 -
S44 -
S29 - Do not empty into drains.
UN IDsUN3077
WGK Germany2
RTECSDA4976500
TSCAYes
HS Code29029090
Hazard Class9
Packing GroupIII
ToxicityLD50 orally in Rabbit: 2250 mg/kg LD50 dermal Rabbit > 5000 mg/kg

Diphenylmethane - Nature

Open Data Verified Data

colorless needle-like crystals with orange flavor. Melting point 25.3 °c. Boiling point 264.3 ℃,158 ℃(4. 67kPa). Relative density 1.006 (liquid). 3421 (solid). Refractive index (nDo) 5753. Insoluble in water, soluble in ethanol, ether, chloroform, benzene and cyclohexane.

Last Update：2024-01-02 23:10:35

Diphenylmethane - Preparation Method

Open Data Verified Data

by benzyl chloride and benzene in aluminum amalgam (or anhydrous aluminum chloride) catalytic effect derived. First, the dried benzene and aluminum amalgam are heated, then benzyl chloride is slowly introduced and refluxed for 2H, cooled, water is added and stirred, and the water is removed by standing, and the rest is washed with 5% alkali solution and washed with water, finally, the product was distilled under reduced pressure.

Last Update：2022-01-01 10:39:50

Diphenylmethane - Introduction

Soluble in ethanol, ether, chloroform, benzene and cyclohexane, insoluble in water, insoluble in liquid ammonia. It has aromas of geranium oil and sweet orange oil.
Last Update：2022-10-16 17:11:27

Diphenylmethane - Use

Open Data Verified Data

organic synthesis raw materials, can be used for the production of dyes, pharmaceuticals and so on.

Last Update：2022-01-01 10:39:49

Diphenylmethane - Safety

Open Data Verified Data
  • oral LDL0 5000mg/kg in rats. See biphenyl for the rest.
  • store in a cool and ventilated warehouse, away from fire, heat source, keep the package intact. Should be sealed and stored.
Last Update：2022-01-01 10:39:50

Diphenylmethane - Reference Information

freezing point 24.0 to 26.0 ℃
NIST chemical information Information provided by: webbook.nist.gov (external link)
EPA chemical information Information provided by: ofmpub.epa.gov (external link)
Introduction Diphenylmethane is an aromatic hydrocarbon, this compound can be regarded as the product of the substitution of two hydrogen atoms in methane by phenyl. Diphenylmethane is the basic skeleton of many compounds in organic chemistry. It can be prepared by the Friedel-Crafts reaction of benzyl chloride and benzene under the catalysis of Lewis acid such as aluminum trichloride: C6H5CH2Cl C6H6 → (C6H5)2CH2 HCl
apply white crystal or crystalline powder of dextrocamphorsulfonic acid. It can be used as a resolution agent and a catalyst for dipeptide coupling; used for the resolution of pharmaceutical intermediates or isomer products; used in the pharmaceutical industry; organic synthesis intermediates.
use used for organic synthesis, and also used as a reagent for determination of mercury and a gas chromatography stationary liquid
diphenylmethane has the ability to fix fragrance and can be used in a small amount in medium and low-grade daily necessities, especially in soap essence with its rose-like geranium flavor, which can be used in human roses, new grass, fragrant myrtle and various types, it is also used to prepare artificial geranium oil. It can be well mixed with dimethyl hydroquinone, coumarin, and hydroxycitronellal, and it can also be coordinated with peach, Rubus and other fruity aromas.
Diphenylmethane can be used as an intermediate in organic synthesis, and the pharmaceutical industry is used to produce diphenhydramine hydrochloride.
in the perfume industry, diphenylmethane can be used as a substitute for geranium oil, suitable for preparing soap essence and perfume, etc. It is also used in dye production, as well as a reagent for mercury determination and a gas chromatography stationary liquid.
Production method It is obtained by the reaction of benzyl chloride and benzene under the catalysis of aluminum amalgam (or anhydrous aluminum trichloride, or zinc chloride). First, the dried benzene and aluminum amalgam are heated, then benzyl chloride is slowly introduced, refluxed for 2 hours, cooled and stirred with water, let stand to remove water, the rest is washed with 5% lye, washed with water, and finally distilled under reduced pressure to obtain the finished product.
auto-ignition temperature 905 °F
toxic substance data information provided by: pubchem.ncbi.nlm.nih.gov (external link)
Last Update：2024-04-09 15:16:46
Diphenylmethane
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Guangzhou Yuanda New Material Co.,Ltd
Multiple Specifications
Product Name: Diphenylmethane Request for quotation
CAS: 101-81-5
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589 Click to send a QQ message
Wechat: +86 19849939632
Hefei TNJ Chemical Industry Co.,Ltd.
Product Name: Diphenylmethane Request for quotation
CAS: 101-81-5
Tel: 0086-551-65418684
Email: sales@tnjchem.com
　　　　 info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840 Click to send a QQ message
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Shanghai Yuanye Bio-Technology Co., Ltd.
Product Name: Diphenylmethane Visit Supplier Webpage Request for quotation
CAS: 101-81-5
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
Wechat: 18301782025
Wuhan Boye Science And Technology Development Co., Ltd.
Product Name: Diphenylmethane Request for quotation
CAS: 101-81-5
Tel: 86-10-10086 81625225
Email: yeqim@boyechemicals.com
Mobile: 86-15387090420
QQ: 1377812380 Click to send a QQ message
Wechat: 15387090420
Shanghai Worldyang Chemical Co.,Ltd.
Product Name: Diphenylmethane Request for quotation
CAS: 101-81-5
Tel: +86-21-56795779
Email: charles7788@worldyachem.com
Mobile: +86-13651600618
QQ: 2850607228 Click to send a QQ message
Wechat: 13651600618
WhatsApp: +8613651600618
Hubei guoheng pharmaceutical technology co., ltd
Product Name: Diphenylmethane Request for quotation
CAS: 101-81-5
Tel: 15572577573
Email: 1332578202@qq.com
Mobile: 16602705536
QQ: 1332578202 Click to send a QQ messageSend QQ message
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Diphenylmethane
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