1-Bromo-2,3-difluorobenzene
- Product Name
- 1-Bromo-2,3-difluorobenzene
- CAS No.
- 38573-88-5
- Chemical Name
- 1-Bromo-2,3-difluorobenzene
- Synonyms
- 2,3-DIFLUOROBROMOBENZENE;2,3-Diflurobromobenzene;2,3-DifluoroBrmorobenzene;1-Bromo-2,3-difL;1-Bromo-2,3-difluoro;Rimegepant Impurity 4;Rimegepant Impurity 33;2,3- twofluorine broMine;1-Bromo-2,3-difluobenzene;1-BROMO-2,3-DIFLUOROBENZENE
- CBNumber
- CB8236717
- Molecular Formula
- C6H3BrF2
- Formula Weight
- 192.99
- MOL File
- 38573-88-5.mol
1-Bromo-2,3-difluorobenzene Property
- Boiling point:
- 234 °C (765 mmHg)
- Density
- 1.724 g/mL at 25 °C(lit.)
- refractive index
- n20/D 1.509(lit.)
- Flash point:
- 142 °F
- storage temp.
- 2-8°C
- form
- clear liquid
- color
- Colorless to Almost colorless
- Specific Gravity
- 1.724
- InChIKey
- RKWWASUTWAFKHA-UHFFFAOYSA-N
- CAS DataBase Reference
- 38573-88-5(CAS DataBase Reference)
Safety
- Hazard Codes
- Xi,F
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36/37/39-37/39
- RIDADR
- 1993
- WGK Germany
- 3
- Hazard Note
- Flammable
- HazardClass
- 3.2
- PackingGroup
- III
- HS Code
- 29039990
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H227Combustible liquid
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P403+P235Store in a well-ventilated place. Keep cool.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- B1800
- Product name
- 1-Bromo-2,3-difluorobenzene
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $29
- Updated
- 2024/03/01
- Product number
- B1800
- Product name
- 1-Bromo-2,3-difluorobenzene
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $55
- Updated
- 2024/03/01
- Product number
- B21585
- Product name
- 1-Bromo-2,3-difluorobenzene, 98%
- Packaging
- 1g
- Price
- $44.65
- Updated
- 2024/03/01
- Product number
- B21585
- Product name
- 1-Bromo-2,3-difluorobenzene, 98%
- Packaging
- 5g
- Price
- $132.65
- Updated
- 2024/03/01
- Product number
- B1800
- Product name
- 1-Bromo-2,3-difluorobenzene
- Purity
- >98.0%(GC)
- Packaging
- 25g
- Price
- $165
- Updated
- 2024/03/01
1-Bromo-2,3-difluorobenzene Chemical Properties,Usage,Production
Chemical Properties
Clear colorless to peach liquid
Uses
1-Bromo-2,3-difluorobenzene may be used in the synthesis of potent, orally active Calcitonin gene-related peptide (CGRP) receptor antagonist (BMS-846372). It may be used in the preparation of 2,3-difluorophenyl(dimethyl)phosphane.
Uses
intermediate for liquid crystal and drugs
General Description
Microbial oxidation of 1-bromo-2,3-difluorobenzene by Pseudomonas putida strain 39/D and Escherichia coli recombinant microorganism (strain JM 109(pDTG601)) has been reported.
Synthesis
Add
50% aqueous solution of KOH (18.0 g, 160 mmol) to a mixture of
1-bromo-5,5,6,6-tetrafluorocyclohex-1-ene (11.65 g) and
triethylbenzylammonium chloride (0.15 g, 0.7 mmol) at 30-35°C for 30
minutes. Keep the reaction mixture at 75-85°C for 2 hours. Cool the
reaction mixture. Dilute the reaction mixture with water. Extract the
organic product with CH2Cl2. Dry the organic product over CaCl2. Distill the organic product. 1H NMR (CDCl3, 300.1 MHz), δ: 7.00-7.16 (m, 1H, Ar); 7.17-7.29 (m, 1H, Ar); 7.34-7.47 (m, 1H, Ar). 13C NMR (CDCl3,
75.5 MHz), δ: 110.40 (d, C(1), J = 17.5 Hz); 116.40 (d, C(4), J = 17.7
Hz); 124.70 (dd, C(5), J = 7.1 Hz, J = 5.0 Hz); 128.23 (d, C(6), J = 3.6
Hz); 148.10 (dd, C(2), J = 248.8 Hz, J = 14.3 Hz); 150.92 (dd, C(3), J =
251.9 Hz, J = 13.3 Hz). 19F NMR (CDCl3, 282.4 MHz), δ: -130.9 (m, 1 F, Ar), -134.8 (m, 1 F, Ar). BP 157-158°C. Elemental Analysis Found (%): C, 37.54; H, 1.50. C6H3BrF2. Calculated (%): C, 37.34; H, 1.52. Mass Spec MS, m/z (Irel (%)): 194, 192 [M]+ (100, 99), 113 [M-Br]+ (88), 63 (60).
storage
Keep container sealed and store in an ventilated, low temperature, dry warehouse, separate from foods and oxidizing agents.
1-Bromo-2,3-difluorobenzene Preparation Products And Raw materials
Raw materials
Preparation Products
1-Bromo-2,3-difluorobenzene Suppliers
- Tel
- 320-37350700
- Fax
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View Lastest Price from 1-Bromo-2,3-difluorobenzene manufacturers
- Product
- 1-Bromo-2,3-difluorobenzene 38573-88-5
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99.%
- Supply Ability
- 10 ton
- Release date
- 2024-08-19
- Product
- 1-Bromo-2,3-difluorobenzene 38573-88-5
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 100
- Release date
- 2023-12-28
- Product
- 1-Bromo-2,3-difluorobenzene 38573-88-5
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 2000ton
- Release date
- 2023-08-28