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762-42-5

Name Dimethyl acetylenedicarboxylate
CAS 762-42-5
EINECS(EC#) 212-098-4
Molecular Formula C6H6O4
MDL Number MFCD00008456
Molecular Weight 142.11
MOL File 762-42-5.mol
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Chemical Properties

Appearance clear colorless to light yellow liquid
Melting point  -18 °C
Boiling point  95-98 °C/19 mmHg (lit.)
density  1.156 g/mL at 25 °C(lit.)
refractive index  n20/D 1.447(lit.)
Fp  187 °F
storage temp.  Keep in dark place,Sealed in dry,Room Temperature
form  Liquid
color  Colorless to pale yellow
Water Solubility  Soluble in most organic solvents. Insoluble in water.
Sensitive  Light Sensitive
Detection Methods GC,NMR
BRN  607063
InChIKey VHILMKFSCRWWIJ-UHFFFAOYSA-N
CAS DataBase Reference 762-42-5(CAS DataBase Reference)
NIST Chemistry Reference 2-Butynedioic acid, dimethyl ester(762-42-5)
EPA Substance Registry System 762-42-5(EPA Substance)

Safety Data

Hazard Codes  C
Risk Statements 
R34:Causes burns.
R22:Harmful if swallowed.
Safety Statements 
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S27:Take off immediately all contaminated clothing .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
RIDADR  UN 3265 8/PG 2
WGK Germany  3
RTECS  ES0175000
F  8-19
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29171990

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