5-BROMO-2-HYDROXY-4-METHYLPYRIDINE
- Product Name
- 5-BROMO-2-HYDROXY-4-METHYLPYRIDINE
- CAS No.
- 164513-38-6
- Chemical Name
- 5-BROMO-2-HYDROXY-4-METHYLPYRIDINE
- Synonyms
- CAS:164513-38-6;5-Bromo-2-hydroxy-4-methyL;5-Bromo-4-methyl-2-pyridone;5-BROMO-4-METHYLPYRIDIN-2-OL;5-BROMO-2-HYDROXY-4-PICOLINE;2-HYDROXY-5-BROMO-4-PICOLINE;5-BROMO-4-METHYL-2-PYRIDINOL;5-Bromo-2-hydroxy-4-picoline,97%;5-bromo-4-methylpyridin-2(1H)-one;5-BROMO-4-METHYL-2(1H)-PYRIDINONE
- CBNumber
- CB7254464
- Molecular Formula
- C6H6BrNO
- Formula Weight
- 188.02
- MOL File
- 164513-38-6.mol
5-BROMO-2-HYDROXY-4-METHYLPYRIDINE Property
- Melting point:
- 198-202 °C (lit.)
- Boiling point:
- 291.8±40.0 °C(Predicted)
- Density
- 1.5296 (rough estimate)
- refractive index
- 1.5500 (estimate)
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- form
- Solid
- pka
- 9.99±0.10(Predicted)
- color
- Off-white
- Water Solubility
- Slightly soluble in water.
- CAS DataBase Reference
- 164513-38-6(CAS DataBase Reference)
Safety
- Hazard Codes
- Xn,Xi
- Risk Statements
- 22-37/38-41
- Safety Statements
- 26
- WGK Germany
- 3
- Hazard Note
- Harmful
- HazardClass
- IRRITANT
- HS Code
- 2933399990
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation
- Precautionary statements
-
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
N-Bromosuccinimide Price
- Product number
- 636363
- Product name
- 5-Bromo-2-hydroxy-4-methylpyridine
- Purity
- 97%
- Packaging
- 1g
- Price
- $72.4
- Updated
- 2023/06/20
- Product number
- B4701
- Product name
- 5-Bromo-2-hydroxy-4-methylpyridine
- Purity
- >98.0%(GC)(T)
- Packaging
- 5g
- Price
- $88
- Updated
- 2025/07/31
- Product number
- B4701
- Product name
- 5-Bromo-2-hydroxy-4-methylpyridine
- Purity
- >98.0%(GC)(T)
- Packaging
- 25g
- Price
- $351
- Updated
- 2025/07/31
- Product number
- B697618
- Product name
- 5-Bromo-4-methyl-2(1H)-pyridinone
- Packaging
- 500mg
- Price
- $65
- Updated
- 2021/12/16
- Product number
- B697618
- Product name
- 5-Bromo-4-methyl-2(1H)-pyridinone
- Packaging
- 100mg
- Price
- $45
- Updated
- 2021/12/16
5-BROMO-2-HYDROXY-4-METHYLPYRIDINE Chemical Properties,Usage,Production
Chemical Properties
light yellow powder
Uses
It is used for medicine.
Synthesis
98198-48-2
164513-38-6
The general procedure for the synthesis of 5-bromo-2-hydroxy-4-methylpyridine using 2-amino-5-bromo-4-methylpyridine as starting material was as follows: an aqueous solution (14 ml) of sodium nitrite (5.44 g, 78.8 mmol) was added slowly and dropwise at 0-5°C to 20% of a 20% solution containing 2-amino-5-bromo-4-methylpyridine (12.83 g, 68.6 mmol) in sulfuric acid solution (69 ml). The reaction mixture was stirred at 0°C for 1 hour and then heated to reflux for 1 hour. Subsequently, the reaction solution was alkalized to pH 10 with 40% sodium hydroxide solution and after cooling to 5°C, the precipitated product was isolated by filtration. The product was recrystallized from ethanol to give 5-bromo-2-hydroxy-4-methylpyridine (5.97 g, 31% yield) as white needle-like crystals (melting point 200°-201°C). NMR hydrogen spectrum (D6-DMSO) δH: 2.17 (3H, single peak, CH3), 6.40 (1H, single peak, 3-H), 7.76 (1H, single peak, 6-H), 11.58 (1H, single peak, NH). Mass spectrum (EI) m/z: 189 (M+, 100%), 187 (M+, 97%). Measured molecular weight: 186.9634 (theoretical molecular weight of C6H6NOBr is 186.9633).
References
[1] Patent: US5536745, 1996, A
[2] Tetrahedron Letters, 1994, vol. 35, # 22, p. 3771 - 3774
5-BROMO-2-HYDROXY-4-METHYLPYRIDINE Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 5-BROMO-2-HYDROXY-4-METHYLPYRIDINE manufacturers
- Product
- 5-BROMO-2-HYDROXY-4-METHYLPYRIDINE 164513-38-6
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 98.0%
- Supply Ability
- 10000KGS
- Release date
- 2025-06-03
- Product
- 5-BROMO-2-HYDROXY-4-METHYLPYRIDINE 164513-38-6
- Price
- US $5.00-0.10/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-04-09
- Product
- 5-BROMO-2-HYDROXY-4-METHYLPYRIDINE 164513-38-6
- Price
- US $10.00/kg
- Min. Order
- 1kg
- Purity
- 99.99%
- Supply Ability
- 50000tons
- Release date
- 2023-08-09