8.14233 EMD Millipore


3-Bromothiophene for synthesis. CAS 872-31-1, molar mass 163.03 g/mol., for synthesis

Synonym: 3-Thienylbromide

  • CAS Number 872-31-1

  • Linear Formula C₄H₃BrS

  • Molecular Weight 163.03 g/mol

  •  EC Number 212-821-3



Related Categories Biochemicals and Reagents More...
packaging   10 ml in Glass bottle (8142330010)
  50 ml in Glass bottle (8142330050)
vapor pressure   75 hPa (60 °C)
density   1.72 g/cm3 (20 °C)
flash point   52 °C
mp   <-10 °C
LD 50 oral   LD50 Rat 66 - 160 mg/kg
LD 50 dermal   LD50 Rabbit 173 - 694 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (GC, area%): ≥ 97.0 % (a/a)
  Density (d 20 °C/ 4 °C): 1.715 - 1.725
  Identity (IR): passes test

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Safety Information

HS Code 
2934 99 90
Hazard Statement(s) 
H226: Flammable liquid and vapour.
H301: Toxic if swallowed.
H310 + H330: Fatal in contact with skin or if inhaled
H335: May cause respiratory irritation.
H411: Toxic to aquatic life with long lasting effects.
Precautionary Statement(s) 
P210: Keep away from heat.
P273: Avoid release to the environment.
P280: Wear protective gloves/ protective clothing.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Storage class 
3 Flammable liquids
WGK 3 highly water endangering
Carcinogenic compounds and flammable compounds labelled "Highly toxic" or "Toxic": container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).
Hazard Pictogram(s) 
GHS02  GHS02
Hazard Pictogram(s) 
GHS06  GHS06
Hazard Pictogram(s) 
GHS09  GHS09
Hazard Symbols 
Toxic  Toxic
Declaration (railroad and road) ADR, RID 
UN 2929 , 6.1 (3), II
Declaration (transport by air) IATA-DGR 
UN 2929 , 6.1 (3), II
Declaration (transport by sea) IMDG-Code 
UN 2929 , 6.1 (3), II
Categories of danger 
flammable, toxic, irritant, dangerous for the environment
R Phrase 
R 10-23/24/25-37-51/53
Flammable.Toxic by inhalation, in contact with skin and if swallowed.Irritating to respiratory system.Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase 
S 36/37-45-61
Wear suitable protective clothing and gloves.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).Avoid release to the environment. Refer to special instructions/ Safety data sheets.
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