ChemicalBook > CAS DataBase List > 5-bromo-1-methyl-1,2,4-triazole

5-bromo-1-methyl-1,2,4-triazole

Product Name
5-bromo-1-methyl-1,2,4-triazole
CAS No.
16681-72-4
Chemical Name
5-bromo-1-methyl-1,2,4-triazole
Synonyms
5-BroMo-1-Methyl-1H-1,2,4-triazole;1-Methyl-5-bromo-1,2,4-triazole;5-bromo-1-methyl-1,2,4-triazole;1H-1,2,4-Triazole, 5-bromo-1-methyl-
CBNumber
CB21459593
Molecular Formula
C3H4BrN3
Formula Weight
161.99
MOL File
16681-72-4.mol
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5-bromo-1-methyl-1,2,4-triazole Property

Boiling point:
256℃
Density 
1.93
Flash point:
109℃
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
form 
solid
pka
0.98±0.10(Predicted)
Appearance
White to off-white Solid
InChI
InChI=1S/C3H4BrN3/c1-7-3(4)5-2-6-7/h2H,1H3
InChIKey
ZYLIOXAULQKGII-UHFFFAOYSA-N
SMILES
N1(C)C(Br)=NC=N1
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Safety

Hazard Codes 
Xn
Risk Statements 
22
WGK Germany 
3
HS Code 
2933998090
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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

H335May cause respiratory irritation

Precautionary statements

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

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

Sigma-Aldrich
Product number
CBR01745
Product name
5-Bromo-1-methyl-1H-1,2,4-triazole
Purity
AldrichCPR
Packaging
1g
Price
$497
Updated
2025/07/31
TRC
Product number
B697848
Product name
5-Bromo-1-methyl-1H-1,2,4-triazole
Packaging
1g
Price
$130
Updated
2021/12/16
Biosynth Carbosynth
Product number
FB126981
Product name
5-Bromo-1-methyl-1H-1,2,4-triazole
Packaging
500mg
Price
$100
Updated
2021/12/16
Biosynth Carbosynth
Product number
FB126981
Product name
5-Bromo-1-methyl-1H-1,2,4-triazole
Packaging
1g
Price
$150
Updated
2021/12/16
Biosynth Carbosynth
Product number
FB126981
Product name
5-Bromo-1-methyl-1H-1,2,4-triazole
Packaging
2g
Price
$200
Updated
2021/12/16
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5-bromo-1-methyl-1,2,4-triazole Chemical Properties,Usage,Production

Synthesis

6086-21-1

16681-72-4

General procedure for the synthesis of 5-bromo-1-methyl-1H-1,2,4-triazole from 1-methyl-1H-1,2,4-triazole: 1.6 M n-BuLi (8.70 mL, 13.86 mmol) was slowly added to a mixed solution of 1-methyl-1H-1,2,4-triazole (1.0 mL, 13.20 mmol) and THF (100 mL) at -78 °C. 13.86 mmol). After 45 min of reaction, 1,2-dibromo-1,1,2,2-tetrafluoroethane (1.76 mL, 14.52 mmol) was added, and then the reaction mixture was slowly warmed to room temperature and stirring was continued for 2 hours. After completion of the reaction, the reaction solution was diluted with EtOAc (200 mL), washed sequentially with water (150 mL) and brine (150 mL), the organic phase was dried with MgSO4, filtered and concentrated to afford 5-bromo-1-methyl-1H-1,2,4-triazole (1.37 g, 8.46 mmol, 64% yield). The product was confirmed by 1H NMR (CDCl3): δ 3.82 (s, 3H), 7.78 (s, 1H). LC/MS analysis showed that the m/z calculated value [C3H4BrN3(M+H)+] was 162.0 and the measured value was 161.9.

References

[1] Patent: WO2006/102194, 2006, A1. Location in patent: Page/Page column 117-118

5-bromo-1-methyl-1,2,4-triazole Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 5-bromo-1-methyl-1,2,4-triazole manufacturers

Zhuozhou Wenxi import and Export Co., Ltd
Product
5-bromo-1-methyl-1,2,4-triazole 16681-72-4
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-10
Zhuozhou Wenxi import and Export Co., Ltd
Product
5-bromo-1-methyl-1,2,4-triazole 16681-72-4
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-09
Career Henan Chemical Co
Product
5-bromo-1-methyl-1,2,4-triazole 16681-72-4
Price
US $1.00/g
Min. Order
1g
Purity
99%
Supply Ability
10000Kgs
Release date
2020-01-09

16681-72-4, 5-bromo-1-methyl-1,2,4-triazoleRelated Search:

Sulfathiazole 5-bromo-1-methyl-1,2,4-triazole 2-(3,5-DIBROMO-1H-1,2,4-TRIAZOL-1-YL)ACETONITRILE 3,5-DIBROMO-1-METHYL-1H-1,2,4-TRIAZOLE SALOR-INT L158747-1EA 1-BENZYL-3,5-DIBROMO-1H-1,2,4-TRIAZOLE ETHYL 2-(3,5-DIBROMO-1H-1,2,4-TRIAZOL-1-YL)ACETATE 3,5-DIBROMO-1-(4-FLUOROBENZYL)-1H-1,2,4-TRIAZOLE (3,5-DIBROMO-1H-1,2,4-TRIAZOL-1-YL)(2-THIENYL)METHANONE BENZYL 3,5-DIBROMO-1H-1,2,4-TRIAZOLE-1-CARBOXYLATE 2-(3,5-DIBROMO-1H-1,2,4-TRIAZOL-1-YL)-3-NITROPYRIDINE (3,5-DIBROMO-1H-1,2,4-TRIAZOL-1-YL)(2-FURYL)METHANONE 2-(3,5-DIBROMO-1H-1,2,4-TRIAZOL-1-YL)-1-PHENYL-1-ETHANONE 3,5-DIBROMO-1-([(4-CHLOROPHENYL)SULFONYL]METHYL)-1H-1,2,4-TRIAZOLE 5-BROMO-1-METHYL-3-NITRO-1H-[1,2,4]TRIAZOLE 3-CHLORO-2-(3,5-DIBROMO-1H-1,2,4-TRIAZOL-1-YL)-5-(TRIFLUOROMETHYL)PYRIDINE 3-(3,5-DIBROMO-1H-1,2,4-TRIAZOL-1-YL)-2-BUTANONE

  • 5-bromo-1-methyl-1,2,4-triazole
  • 1H-1,2,4-Triazole, 5-bromo-1-methyl-
  • 5-BroMo-1-Methyl-1H-1,2,4-triazole
  • 1-Methyl-5-bromo-1,2,4-triazole
  • 16681-72-4