5-Methyl-2-aminobenzothiazole
- Product Name
- 5-Methyl-2-aminobenzothiazole
- CAS No.
- 14779-17-0
- Chemical Name
- 5-Methyl-2-aminobenzothiazole
- Synonyms
- 5-Methyl-2-benzothiazolamine;2-AMINO-5-METHYLBENZOTHIAZOLE;5-methyl-2-aminobenzothiazole;2-Benzothiazolamine,5-methyl-;5-Methyl-2-benzo[d]thiazolamine;5-methylbenzo[d]thiazol-2-amine;2-Benzothiazolamine,5-methyl-(9CI)
- CBNumber
- CB1453069
- Molecular Formula
- C8H8N2S
- Formula Weight
- 164.23
- MOL File
- 14779-17-0.mol
5-Methyl-2-aminobenzothiazole Property
- Melting point:
- 182-184 °C(Solv: benzene (71-43-2))
- Boiling point:
- 322.0±35.0 °C(Predicted)
- Density
- 1.315±0.06 g/cm3(Predicted)
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- pka
- 4.31±0.10(Predicted)
- Appearance
- White to off-white Solid
- CAS DataBase Reference
- 14779-17-0(CAS DataBase Reference)
Safety
- HS Code
- 29342000
- Toxicity
- mouse,LD50,intravenous,74mg/kg (74mg/kg),Journal of Pharmacology and Experimental Therapeutics. Vol. 105, Pg. 486, 1952.
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.
N-Bromosuccinimide Price
- Product number
- CS-0039099
- Product name
- 5-Methylbenzo[d]thiazol-2-amine
- Purity
- 98.75%
- Packaging
- 100mg
- Price
- $64
- Updated
- 2021/12/16
- Product number
- CS-0039099
- Product name
- 5-Methylbenzo[d]thiazol-2-amine
- Purity
- 98.75%
- Packaging
- 250mg
- Price
- $106
- Updated
- 2021/12/16
- Product number
- CS-0039099
- Product name
- 5-Methylbenzo[d]thiazol-2-amine
- Purity
- 98.75%
- Packaging
- 1g
- Price
- $315
- Updated
- 2021/12/16
- Product number
- U498
- Product name
- 2-Amino-5-methylbenzothiazole
- Packaging
- 1g
- Price
- $656
- Updated
- 2021/12/16
- Product number
- CHM0094337
- Product name
- 2-AMINO-5-METHYLBENZOTHIAZOLE
- Purity
- 95.00%
- Packaging
- 100G
- Price
- $3019.75
- Updated
- 2021/12/16
5-Methyl-2-aminobenzothiazole Chemical Properties,Usage,Production
Synthesis
333-20-0
108-44-1
14779-17-0
GENERAL METHOD: A solution of 3-methylaniline (2 mmol) in acetonitrile (15 ml) was added to a solution of potassium thiocyanate (8 mmol) in acetonitrile (15 ml). Subsequently, 0.06 g (30 mol% BF3) of BF3/SiO2 nanoparticles was added to the mixture and the mixture was placed in an ice salt bath and mechanically stirred for 30 min. Then, a solution of bromine (4 mmol, 0.2 ml) in acetonitrile (3 ml) was slowly added through a dropping funnel, controlling the rate of addition to ensure that the reaction temperature did not exceed 0 °C. After complete addition of bromine, the reaction mixture was continued to be stirred at room temperature for 4 h, during which the progress of the reaction was monitored by TLC. Upon completion of the reaction, the mixture was poured into water and heated to 70 °C on a steam bath followed by thermal filtration to remove the catalyst. The catalyst was washed with acetone and recycled for reuse. The filtrate was neutralized with 10% NaOH solution and the precipitate was collected, dried and recrystallized from ethanol (10 ml) to give 2-amino-5-methylbenzothiazole. The product was characterized by physical properties and spectral data (including melting point, FT-IR, 1H NMR and 13C NMR) and confirmed by comparison with known standards. Spectral data of the selected products: 6-bromo-1,3-benzothiazol-2-amine (2e) as a yellow solid; yield = 93%; melting point = 202-204 °C (literature value 203 °C); FT-IR (KBr) ν/cm-1: 3315, 3012, 2835, 1580, 1476, 1261, 920, 742, 512; 1H NMR ( 400MHz, CDCl3) δ ppm: 5.44 (s, 2H, NH2), 7.4-7.5 (d, 2H, Ar-H), 7.71 (s, 1H, Ar-H); 13C NMR (100MHz, DMSO-d6) δ ppm: 119, 120.9, 125.15, 126.07, 133.1, 152.15, 167.75. 152.15, 167.75.
References
[1] Research on Chemical Intermediates, 2016, vol. 42, # 12, p. 7855 - 7868
[2] Journal of Pharmaceutical Sciences, 1994, vol. 83, # 10, p. 1425 - 1432
5-Methyl-2-aminobenzothiazole Preparation Products And Raw materials
Raw materials
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View Lastest Price from 5-Methyl-2-aminobenzothiazole manufacturers
- Product
- 5-Methyl-2-aminobenzothiazole 14779-17-0
- Price
- US $3.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 100KG
- Release date
- 2020-01-29