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HomeProduct name list5-Bromothiazole

5-Bromothiazole

5-Bromothiazole Structural

What is 5-Bromothiazole?

The Uses of 5-Bromothiazole

5-Bromothiazole is used as a pharmaceutical intermediate and performance material.

General Description

5-Bromothiazole is a monobromothiazole, which can be prepared via treatment of 2,5-dibromothiazole with sodium ethoxide followed by hydrogenation over spongy nickel.

Purification Methods

If bromothiazole is too coloured, then suspend it in dilute NaOH and steam distil it. Add NaCl to the aqueous distillate, extract it with Et2O, dry it (Na2SO4), evaporate and fractionate the residue in a vacuum. The HgCl2 salt crystallises from EtOH with m 148o (dec). [Beyerman et al. Recl Trav Chim, Pays Bas 73 330 1954, Beilstein 27 III/IV 962.]

Properties of 5-Bromothiazole

Melting point: 131-132 °C(Solv: ligroine (8032-32-4))
Boiling point: 80-81°C/18mm
Density  1.835 at 25 °C
refractive index  1.5955
Flash point: 170°F
form  Liquid
pka 1.00±0.10(Predicted)
color  Clear yellow to brown
Water Solubility  Soluble in water.
Sensitive  Moisture Sensitive
CAS DataBase Reference 3034-55-7(CAS DataBase Reference)

Safety information for 5-Bromothiazole

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H302:Acute toxicity,oral
H315:Skin corrosion/irritation
H317:Sensitisation, Skin
H318: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.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
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.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 5-Bromothiazole

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