1,2-Bis(bromomethyl)benzene
- Product Name
- 1,2-Bis(bromomethyl)benzene
- CAS No.
- 91-13-4
- Chemical Name
- 1,2-Bis(bromomethyl)benzene
- Synonyms
- O-XYLENE DIBROMIDE;O-XYLYLENE DIBROMIDE;α,α’-dibromo-o-xylene;O-XYLYLENE BROMIDE;O-Xylyene dibromide;O-XYLIDENE DIBROMIDE;a,a'-Dibromo-o-xylol;1,2-dibenzyl bromide;1,2-Bis(bromomethyl);à,à'-dibromo-o-xylene
- CBNumber
- CB4129349
- Molecular Formula
- C8H8Br2
- Formula Weight
- 263.96
- MOL File
- 91-13-4.mol
1,2-Bis(bromomethyl)benzene Property
- Melting point:
- 91-94 °C(lit.)
- Boiling point:
- 140 °C / 20mmHg
- Density
- 1.96 g/mL at 25 °C(lit.)
- refractive index
- 1.6113 (estimate)
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- solubility
- sol ethanol, ether, chloroform; slightly sol petroleum ether.
- form
- Crystals or Crystalline Powder
- color
- White to light cream
- Water Solubility
- soluble, hydrolyses
- BRN
- 637159
- InChIKey
- KGKAYWMGPDWLQZ-UHFFFAOYSA-N
- CAS DataBase Reference
- 91-13-4(CAS DataBase Reference)
- NIST Chemistry Reference
- Benzene, 1,2-bis(bromomethyl)-(91-13-4)
- EPA Substance Registry System
- Benzene, 1,2-bis(bromomethyl)- (91-13-4)
Safety
- Hazard Codes
- C
- Risk Statements
- 22-34
- Safety Statements
- 26-36/37/39-45
- RIDADR
- UN 3448 6.1/PG 2
- WGK Germany
- 2
- F
- 8-19-21
- TSCA
- Yes
- HazardClass
- 8
- PackingGroup
- III
- HS Code
- 29036990
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- D44405
- Product name
- α,α′-Dibromo-o-xylene
- Purity
- 97%
- Packaging
- 25g
- Price
- $127
- Updated
- 2024/03/01
- Product number
- D44405
- Product name
- α,α′-Dibromo-o-xylene
- Purity
- 97%
- Packaging
- 100g
- Price
- $177
- Updated
- 2024/03/01
- Product number
- D0214
- Product name
- α,α'-Dibromo-o-xylene
- Packaging
- 25G
- Price
- $69
- Updated
- 2024/03/01
- Product number
- D0214
- Product name
- α,α'-Dibromo-o-xylene
- Packaging
- 100G
- Price
- $216
- Updated
- 2024/03/01
- Product number
- A17241
- Product name
- o-Xylylene dibromide, 97%
- Packaging
- 5g
- Price
- $21.65
- Updated
- 2024/03/01
1,2-Bis(bromomethyl)benzene Chemical Properties,Usage,Production
Chemical Properties
white to light yellow crystal powde
Uses
1,2-Bis(bromomethyl)benzene is used in the synthesis of isothioureas involved in the inhibition of human nitric oxide synthases. Also used in the synthesis of tridentate carbene ligands.
Application
1,2-Bis(bromomethyl)benzene (α,α′-Dibromo-o-xylene) is a source of o-quinodimethane, a highly reactive diene useful in Diels-Alder reactions; an electrophile for the synthesis of carbo- and heterocyclic compounds including macrocycles (cyclophanes, crown ethers, hemispherands, spherands), cryptands, hemicarcerands, vaulted cappedophanes, bicyclic compounds, spirocyclic compounds; a protective group reagent for diols.
storage
1,2-Bis(bromomethyl)benzene should be avoided moisture; corrosive (forms HBr on hydrolysis); lachrymator; not mutagenic in Ames test; decontaminate by soaking apparatus, etc. in alcoholic alkali for 24 h or longer.
Purification Methods
Crystallise it from CHCl3 or pet ether, and/or distil it under vacuum. [Wenner Org Chem 17 527 1952, Beilstein 5 H 366, 5 I 180, 5 II 285, 5 III 819, 5 IV 929.]
1,2-Bis(bromomethyl)benzene Preparation Products And Raw materials
Raw materials
Preparation Products
1,2-Bis(bromomethyl)benzene Suppliers
- Tel
- 022-83946278 13820503911
- Fax
- 022-83945176
- sales@creasyn.com
- Country
- China
- ProdList
- 997
- Advantage
- 68
- Tel
- 010-82848833 400-666-7788
- Fax
- 86-10-82849933
- jkinfo@jkchemical.com
- Country
- China
- ProdList
- 96815
- Advantage
- 76
- Tel
- 400-6106006
- Fax
- 021-67582001/03/05
- saleschina@alfa-asia.com
- Country
- China
- ProdList
- 30123
- Advantage
- 84
- Tel
- +86 351 7031519
- Fax
- +86 351 7031519
- sales@RHFChem.com
- Country
- China
- ProdList
- 2338
- Advantage
- 56
- Tel
- 021-67121386
- Fax
- 021-67121385
- Sales-CN@TCIchemicals.com
- Country
- China
- ProdList
- 24529
- Advantage
- 81
- Tel
- 13913622609
- Fax
- 86-512-52893680
- sales@haitianchem.cn
- Country
- China
- ProdList
- 192
- Advantage
- 61
- Tel
- 021-021-58432009 400-005-6266
- Fax
- 021-58436166
- sales8178@energy-chemical.com
- Country
- China
- ProdList
- 44689
- Advantage
- 61
- Tel
- +86 (0) 571 85 58 67 18
- Fax
- 0086-571-85864795
- sales@capotchem.com
- Country
- China
- ProdList
- 18207
- Advantage
- 66
- Tel
- 010-82967028 13552068683
- Fax
- +86-10-82967029
- 2355560935@qq.com
- Country
- China
- ProdList
- 12390
- Advantage
- 60
- Tel
- 13817811078
- Fax
- 86-021-50426522,50426273
- sales@jingyan-chemical.com
- Country
- China
- ProdList
- 9976
- Advantage
- 60
View Lastest Price from 1,2-Bis(bromomethyl)benzene manufacturers
- Product
- 1,2-Bis(bromomethyl)benzene 91-13-4
- Price
- US $32.00-1.30/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-04-15
- Product
- O-Xylylene dibromide 91-13-4
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98.5%
- Supply Ability
- 100 tons
- Release date
- 2022-02-18
- Product
- 1,2-Bis(bromomethyl)benzene 91-13-4
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 25kg
- Release date
- 2019-07-12