2-Amino-6-ethoxybenzothiazole

CAS NO.：94-45-1
Empirical Formula: C9H10N2OS
Molecular Weight: 194.25
MDL number: MFCD00005788
EINECS: 202-333-9
SAFETY DATA SHEET (SDS)
Update Date: 2026-01-13 11:24:50

What is 2-Amino-6-ethoxybenzothiazole?

Chemical properties

off-white powder

General Description

Off-white powder.

Air & Water Reactions

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-6-ethoxybenzothiazole may emit toxic fumes of NOx and SOx.

Fire Hazard

Flash point data for 2-Amino-6-ethoxybenzothiazole are not available. 2-Amino-6-ethoxybenzothiazole is probably combustible.

Properties of 2-Amino-6-ethoxybenzothiazole

Melting point:	161-163 °C (lit.)
Boiling point:	356.1±34.0 °C(Predicted)
Density	1.2164 (rough estimate)
refractive index	1.6800 (estimate)
storage temp.	2-8°C(protect from light)
form	Liquid
pka	4.75±0.10(Predicted)
color	Clear colorless to yellow
Water Solubility	<0.1 g/100 mL at 23 ºC
Stability:	Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference	94-45-1(CAS DataBase Reference)
EPA Substance Registry System	2-Amino-6-ethoxybenzothiazole (94-45-1)

Safety information for 2-Amino-6-ethoxybenzothiazole

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.