Basic information
- CAS
2817-71-2- Standard SMILES
CCn1cccn1- InChIKey
FLNMQGISZVYIIK-UHFFFAOYSA-N- Molecular formula
- C5H8N2
- Average molar mass
- 96.13 g/mol
- Monoisotopic mass
- 96.06874826
Names & identifiers
- Preferred name
- 1-Ethylpyrazole
- IUPAC
- 1-ethylpyrazole
- English name
- 1-Ethylpyrazole
- Molecular formula
- C5H8N2
- Molecular weight
- 96.13
Names & synonyms
Show more names
Database identifiers
- CAS
2817-71-2- PubChem CID
- 498446
- DTXSID
DTXSID50333310- EC Number
- 808-102-4
- Nikkaji
- J908.618H
Properties
Computed structural properties
- XLogP
- -0.1
- Topological polar surface area
- 17.8 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 1
- Heavy atoms
- 7
- Formal charge
- 0
- Complexity
- 54
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- 82.75 °C · 82.75°C (estimate)
- Boiling point
- 137 °C · 137°C(lit.)
- Density
- 0.9537 · 0.9537
- refractive index
- 1.467 to · 1.4670 to 1.4710
- storage temp.
- Sealed in dry,Room Temperature
- pka
- 2.27 · 2.27±0.10(Predicted)
- form
- clear liquid to cloudy liquid
- color
- Colorless to Light yellow
- InChI
- InChI=1S/C5H8N2/c1-2-7-5-3-4-6-7/h3-5H,2H2,1H3
- InChIKey
- FLNMQGISZVYIIK-UHFFFAOYSA-N
- SMILES
- N1(CC)C=CC=N1
- Symbol(GHS)
- 7 · GHS07,GHS02
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319-H226
- Precautionary statements
- 501 · P501-P240-P210-P233-P243-P241-P242-P264-P280-P370+P378-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P332+P313-P403+P235
- RIDADR
- 1993 · UN 1993 3/PG III
- HazardClass
- IRRITANT
- PackingGroup
- III
- HS Code
- 2933998090 · 2933998090
Safety & regulation
GHS classification
GHS Classification
Warning
H226 (100%): Flammable liquid and vapor [Warning Flammable liquids];H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation];H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation];H335 (50%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 2 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Hazard information
Safety data
- ridadr
- UN 1993 3/PG III
- hs_code
- 2933998090
- Signal word
- Warning
- Symbol(GHS)
- GHS07,GHS02
- hazard_class
- IRRITANT
- packing_group
- III
- Hazard statements
- H315-H319-H226
- Precautionary statements
- P501-P240-P210-P233-P243-P241-P242-P264-P280-P370+P378-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P332+P313-P403+P235
Chemistry & industry
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers100 total
Related reactions
Compound notes
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