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4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran Structure

4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran

Chemical Properties

Melting point 215-220 °C(lit.)
Boiling point 444.29°C (rough estimate)
Density  1.239
refractive index  1.5900 (estimate)
Flash point 110 °F
storage temp.  Sealed in dry,Room Temperature
pka 5.46±0.24(Predicted)
form  Powder or Crystalline Needles
color  Dark red
Appearance Dark red to Brown powder to crystal
ex/em λex 471, 372, 352 nm; λem 627, 601 nm in EtOH
λmax 468 nm
Merck  14,2838
InChI InChI=1S/C19H17N3O/c1-14-10-16(17(12-20)13-21)11-19(23-14)9-6-15-4-7-18(8-5-15)22(2)3/h4-11H,1-3H3
InChIKey YLYPIBBGWLKELC-UHFFFAOYSA-N
SMILES C(#N)/C(=C1/C=C(C)OC(C=CC2=CC=C(N(C)C)C=C2)=C/1)/C#N
EPA Substance Registry System Propanedinitrile, [2-[2-[4-(dimethylamino)phenyl]ethenyl]-6-methyl-4H-pyran-4-ylidene]- (51325-91-8)

Safety Information

Hazard Codes  F,Xn
Risk Statements  11-20-36/37/38-20/21/22-10
Safety Statements  16-26-36-7/9-36/37
RIDADR  UN 3175 4.1/PG 2
WGK Germany  3
RTECS  OO3746100
TSCA  TSCA listed
HazardClass  4.1
PackingGroup  III
HS Code  29329990
Storage Class 4.1B - Flammable solid hazardous materials
Hazard Classifications Acute Tox. 4 Inhalation
Eye Irrit. 2
Flam. Sol. 1
Skin Irrit. 2
STOT SE 3

MSDS

Usage And Synthesis

4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran Supplier