ChemicalBook > CAS DataBase List > 3-BROMO-2-METHYL-5-NITROPYRIDINE

3-BROMO-2-METHYL-5-NITROPYRIDINE

Product Name
3-BROMO-2-METHYL-5-NITROPYRIDINE
CAS No.
186593-42-0
Chemical Name
3-BROMO-2-METHYL-5-NITROPYRIDINE
Synonyms
3-Bromo-5-Nitro-2-Picoline;3-Bromo-2-methyl-5-nitrop...;2-Methyl-3-broMo-5-nitropyridine;3-BROMO-2-METHYL-5-NITROPYRIDINE;Pyridine, 3-bromo-2-methyl-5-nitro-;3-Bromo-2-methyl-5-nitropyridine 98%;3-BROMO-2-METHYL-5-NITROPYRIDINE ISO 9001:2015 REACH
CBNumber
CB9838772
Molecular Formula
C6H5BrN2O2
Formula Weight
217.02
MOL File
186593-42-0.mol
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3-BROMO-2-METHYL-5-NITROPYRIDINE Property

Boiling point:
270.6±35.0 °C(Predicted)
Density 
1.709±0.06 g/cm3(Predicted)
storage temp. 
Inert atmosphere,Room Temperature
pka
-0.44±0.20(Predicted)
Appearance
Yellow to brown Solid
InChI
InChI=1S/C6H5BrN2O2/c1-4-6(7)2-5(3-8-4)9(10)11/h2-3H,1H3
InChIKey
QWAOQTGMEGSRLN-UHFFFAOYSA-N
SMILES
C1(C)=NC=C([N+]([O-])=O)C=C1Br
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Safety

HS Code 
2933399990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

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.

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N-Bromosuccinimide Price

TRC
Product number
B405183
Product name
3-Bromo-2-methyl-5-nitropyridine
Packaging
100mg
Price
$60
Updated
2021/12/16
ChemScene
Product number
CS-W019914
Product name
3-Bromo-2-methyl-5-nitropyridine
Purity
>98.0%
Packaging
5g
Price
$38
Updated
2021/12/16
ChemScene
Product number
CS-W019914
Product name
3-Bromo-2-methyl-5-nitropyridine
Purity
>98.0%
Packaging
10g
Price
$64
Updated
2021/12/16
Matrix Scientific
Product number
068772
Product name
3-Bromo-2-methyl-5-nitro-pyridine
Purity
>95%
Packaging
1g
Price
$68
Updated
2021/12/16
SynQuest Laboratories
Product number
4H54-9-16
Product name
3-Bromo-2-methyl-5-nitropyridine
Packaging
1g
Price
$88
Updated
2021/12/16
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3-BROMO-2-METHYL-5-NITROPYRIDINE Chemical Properties,Usage,Production

Synthesis

5470-17-7

105-53-3

186593-42-0

Step 3: NaH (60% oil dispersion, 2.32 g, 58 mmol) was slowly added to a solution of diethyl malonate (8.8 mL, 58 mmol) ether (110 mL) cooled to 15 °C over 5 min. Subsequently, 3-bromo-2-chloro-5-nitropyridine (12.5 g, 52.6 mmol) was added in four batches over a period of 15 min, and the temperature was observed to rise to 26 °C during the reaction. Upon completion of the reaction, the ether was removed by distillation under reduced pressure to give a red oily substance. This oily substance was stirred at 114 °C for 1 h 15 min and then 6 M H2SO4 (67 mL) was added. The mixture was heated to reflux for 8 h. After cooling to 0 °C, the pH was adjusted to 7 with 25% aqueous KOH (135 mL). The mixture was stirred in an ice bath for 25 min, the crude product was collected by filtration and washed with 50 mL of water. The crude product was dissolved in CH2Cl2 (350 mL), stirred for 30 min and filtered to remove insoluble material. The organic layer was dried with Na2SO4, filtered and concentrated to give 11.1 g of impure red oily product. This oily product was dissolved in CH2Cl2 (100 mL) and hexane (200 mL), filtered and the organic phase was concentrated to give 9.3 g of 3-bromo-2-methyl-5-nitropyridine as an orange crystalline solid in 81% yield.1H NMR (CDCl3) δ 9.25 (d, J = 2.3 Hz, 1H), 8.61 (d, J = 2.3 Hz, 1H), 2.80 (s, 3H).

References

[1] Patent: US2006/79522, 2006, A1. Location in patent: Page/Page column 8; 13
[2] Patent: US2006/79523, 2006, A1. Location in patent: Page/Page column 9; 13-14
[3] Patent: US2006/79524, 2006, A1. Location in patent: Page/Page column 13
[4] Patent: US2006/79683, 2006, A1. Location in patent: Page/Page column 8; 12
[5] Patent: CN103130792, 2016, B. Location in patent: Paragraph 0722-0724

3-BROMO-2-METHYL-5-NITROPYRIDINE Preparation Products And Raw materials

Raw materials

Preparation Products

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3-BROMO-2-METHYL-5-NITROPYRIDINE Suppliers

Changzhou Jiuwu Chemical co., Ltd.
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13775162768
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16356194@qq.com
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China
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Changzhou chennuo Biotechnology Co., Ltd
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17768395970
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China
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ChangShu Haitian Fine Chemicals Co.,Ltd
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13913622609
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86-512-52893680
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China
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Pure Chemistry Scientific Inc.
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001-857-928-2050 or 1-888-588-9418
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001-617-206-9595
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sales@chemreagents.com
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United States
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Shanghai Hanhong Scientific Co.,Ltd.
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021-54306202 13764082696
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info@hanhongsci.com
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China
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Tianjin heowns Biochemical Technology Co., Ltd.
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400 638 7771
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sales@heowns.com
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China
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Atop-Pharma (Shanghai) Technology Co., Ltd.
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+86 (21) 5196-9733
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China
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Shanghai Topbiochem Technology Co., Ltd
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021-58170097
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China
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Nanjing Norris-Pharm Technology Co., Ltd
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18652989687
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+86-25-52131256
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sales@norris-pharm.com
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China
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Shanghai Jian Chao Chemical Technology Co., Ltd.
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150-2103-5486 18017383231
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qq:2817624287
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983544897@qq.com
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China
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View Lastest Price from 3-BROMO-2-METHYL-5-NITROPYRIDINE manufacturers

Dideu Industries Group Limited
Product
3-BROMO-2-METHYL-5-NITROPYRIDINE 186593-42-0
Price
US $1.10/g
Min. Order
1g
Purity
99.00%
Supply Ability
100 Tons min
Release date
2021-09-22
Career Henan Chemical Co
Product
3-BROMO-2-METHYL-5-NITROPYRIDINE 186593-42-0
Price
US $1.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
200kg
Release date
2018-12-20