2-Amino-4-methylbenzothiazole
- CAS NO.：1477-42-5
- Empirical Formula: C8H8N2S
- Molecular Weight: 164.23
- MDL number: MFCD00005793
- EINECS: 216-028-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:24
What is 2-Amino-4-methylbenzothiazole?
Chemical properties
OFF-WHITE TO SLIGHTLY BEIGE CRYSTALLINE POWDER
The Uses of 2-Amino-4-methylbenzothiazole
2-Amino-4-methylbenzothiazole was used in the synthesis of N-(4-methyl-1,3-benzothiazol-yl)-N-[(1,4,5,8-tetramethoxy-2-napthyl)methylidene]amine and Schiff′s base via condensation with 2-acetonaphthone.
General Description
White powder.
Air & Water Reactions
2-Amino-4-methylbenzothiazole is sensitive to moisture. Insoluble in water.
Reactivity Profile
An amine, organosulfide. Organosulfides are incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. Many of these compounds may liberate hydrogen sulfide upon decomposition or reaction with an acid. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.
Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition 2-Amino-4-methylbenzothiazole emits very toxic fumes of SOx and NOx.
Fire Hazard
Flash point data for 2-Amino-4-methylbenzothiazole are not available. 2-Amino-4-methylbenzothiazole is probably combustible.
Properties of 2-Amino-4-methylbenzothiazole
| Melting point: | 137-139 °C (lit.) |
| Boiling point: | 322.0±35.0 °C(Predicted) |
| Density | 1.1724 (rough estimate) |
| vapor pressure | 0.053Pa at 25℃ |
| refractive index | 1.5700 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| form | Solid:particulate/powder |
| pka | pK1: 4.7(+1) (25°C) |
| color | White to Light yellow |
| Water Solubility | <0.1 g/100 mL at 24 ºC |
| Sensitive | Moisture Sensitive |
| BRN | 129346 |
| CAS DataBase Reference | 1477-42-5(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Benzothiazolamine, 4-methyl-(1477-42-5) |
| EPA Substance Registry System | 2-Amino-4-methylbenzothiazole (1477-42-5) |
Safety information for 2-Amino-4-methylbenzothiazole
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P330:Rinse mouth. P501:Dispose of contents/container to..… |
Computed Descriptors for 2-Amino-4-methylbenzothiazole
2-Amino-4-methylbenzothiazole manufacturer
G C Int'L
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