Crotonaldehyde CAS 123-73-9

Product Name: Crotonaldehyde
Synonyms: trans-crotonaldehyde,( 57190262,E)-2-butenal;Crotonaldehyde, predominantly trans, 98+%;Bu-2-tenal;Crotonaldehyde(E)-2-Butenal;Crotonaldehyde, 99+%, AcroSeal;(2E)-But-2-enal;2-BUTEN-1-AL;TRANS-2-BUTENAL
CAS: 123-73-9
MF: C4H6O
MW: 70.09
EINECS: 204-647-1
Product Categories: Pharmaceutical Intermediates;Aldehydes;C1 to C6;Carbonyl Compounds;Building Blocks;C1 to C6;Carbonyl Compounds;Chemical Synthesis;Organic Building Blocks
Mol File: 123-73-9.mol
Crotonaldehyde Structure
Crotonaldehyde Chemical Properties
Melting point −76 °C(lit.)
Boiling point 104 °C(lit.)
density 0.853 g/mL at 20 °C(lit.)
vapor density 2.41 (vs air)
vapor pressure 32 mm Hg ( 20 °C)
refractive index n20/D 1.437
Fp 48 °F
storage temp. 2-8°C
solubility water: soluble425.4g/L at 20°C
form Liquid
color Clear
explosive limit 19.5%
Water Solubility 150 g/L (20 ºC)
Merck 14,2596
BRN 906731
Exposure limits TLV-TWA 6 mg/m3 (2 ppm)(ACGIH); IDLH 400 ppm (NIOSH).
InChIKey MLUCVPSAIODCQM-NSCUHMNNSA-N
CAS DataBase Reference 123-73-9(CAS DataBase Reference)
NIST Chemistry Reference Crotonaldehyde(123-73-9)
EPA Substance Registry System 2-Butenal,( 57190263,2E)-(123-73-9)
Safety Information
Hazard Codes F,T+,N
Risk Statements 11-24/25-26-37/38-41-48/22-50-68-R68-R50-R48/22-R41-R37/38-R26-R24/25-R11
Safety Statements 26-28-36/37/39-45-61-28A-S61-S45-S36/37/39-S28A-S26-16
RIDADR UN 1143 6.1/PG 1
WGK Germany 3
RTECS GP9625000
F 9-13-23
Autoignition Temperature 320 °F
HazardClass 6.1
PackingGroup I
HS Code 29121990
Hazardous Substances Data 123-73-9(Hazardous Substances Data)