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67-51-6

Name 3,5-Dimethylpyrazole
CAS 67-51-6
EINECS(EC#) 200-657-5
Molecular Formula C5H8N2
MDL Number MFCD00005243
Molecular Weight 96.13
MOL File 67-51-6.mol
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Chemical Properties

Appearance White crystal powder
Melting point  105-108 °C (lit.)
Boiling point  218 °C (lit.)
density  0,884 g/cm3
refractive index  1.4739 (estimate)
Fp  210°C
storage temp.  Sealed in dry,Room Temperature
solubility  methanol: 0.1 g/mL, clear
form  Crystalline Powder or Crystals
pka 15.12±0.10(Predicted)
color  White to almost white
PH 6.7 (14g/l, H2O, 20℃)
Water Solubility  Soluble in water, methanol 0.1 g/mL.
Usage 3,5-Dimethylpyrazole is used as intermediate for the manufacture of organic dyestuffs and photochemicals. Product Data Sheet
Detection Methods GC
BRN  106325
InChI 1S/C5H8N2/c1-4-3-5(2)7-6-4/h3H,1-2H3,(H,6,7)
InChIKey SDXAWLJRERMRKF-UHFFFAOYSA-N
SMILES Cc1cc(C)[nH]n1
LogP 1.010
CAS DataBase Reference 67-51-6(CAS DataBase Reference)
NIST Chemistry Reference 1H-Pyrazole, 3,5-dimethyl-(67-51-6)
EPA Substance Registry System 67-51-6(EPA Substance)
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Safety Data

Hazard Codes  Xn,Xi
Risk Statements 
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
WGK Germany  3
RTECS  UQ6477600
Hazard Note  Irritant
TSCA  Yes
HazardClass  IRRITANT
HS Code  29331990
Storage Class 13 - Non Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
STOT RE 2

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