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638-02-8

Name 2,5-Dimethylthiophene
CAS 638-02-8
EINECS(EC#) 211-313-9
Molecular Formula C6H8S
MDL Number MFCD00005452
Molecular Weight 112.19
MOL File 638-02-8.mol
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Chemical Properties

Appearance clear colorless to slightly yellow liquid
Melting point  -63°C
Boiling point  134 °C/740 mmHg (lit.)
density  0.985 g/mL at 25 °C(lit.)
refractive index  n20/D 1.512(lit.)
Fp  75 °F
storage temp.  Flammables area
form  Liquid
color  Clear colorless to slightly yellow
Specific Gravity 0.985
Odor at 0.10 % in propylene glycol. nutty sulfury
Odor Type sulfurous
Water Solubility  Insoluble in water. Soluble in alcohol, ether and benzene.
BRN  106450
InChIKey GWQOOADXMVQEFT-UHFFFAOYSA-N
LogP 2.523 (est)
CAS DataBase Reference 638-02-8(CAS DataBase Reference)
NIST Chemistry Reference Thiophene, 2,5-dimethyl-(638-02-8)
EPA Substance Registry System 638-02-8(EPA Substance)
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Safety Data

Hazard Codes  Xn,F,Xi
Risk Statements 
R10:Flammable.
R37:Irritating to the respiratory system.
Safety Statements 
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S24/25:Avoid contact with skin and eyes .
S16:Keep away from sources of ignition-No smoking .
S36:Wear suitable protective clothing .
S33:Take precautionary measures against static discharges .
S29:Do not empty into drains .
S7/9:Keep container tightly closed and in a well-ventilated place .
RIDADR  UN 1993 3/PG 3
WGK Germany  3
HazardClass  3
PackingGroup  II
HS Code  29349990

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