2,3-Butanedione CAS#431-03-8
Product Name: |
2,3-Butanedione |
Synonyms: |
2,3-Butanedione 2,3-Diketobutane Dimethylglyoxal;2,3-Butanedione 97%;Two2,3-butylketone;2, 3 – butyl diketone;DIMETHYL DIKETONE;2,3-butanedione (diacetal);dimethyl-glyoxa;Glyoxal, dimethyl- |
CAS: |
431-03-8 |
MF: |
C4H6O2 |
MW: |
86.09 |
EINECS: |
207-069-8 |
Product Categories: |
Biochemistry;Reagents for Oligosaccharide Synthesis;ketone Flavor;Organics;B;Bioactive Small Molecules;Building Blocks;C3 to C6;Carbonyl Compounds;Cell Biology;Chemical Synthesis;Ketones;Organic Building Blocks |
Mol File: |
431-03-8.mol |
 |
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2,3-Butanedione Chemical Properties |
Melting point |
-4–2 °C |
Boiling point |
88 °C(lit.) |
density |
0.985 g/mL at 20 °C |
vapor density |
3 (vs air) |
vapor pressure |
52.2 mm Hg ( 20 °C) |
FEMA |
2370 | DIACETYL |
refractive index |
n20/D 1.394(lit.) |
Fp |
45 °F |
storage temp. |
Store at +2°C to +8°C. |
solubility |
200g/l |
form |
Liquid |
color |
Clear yellow |
Odor |
at 1.00 % in propylene glycol. strong butter sweet creamy pungent caramel |
Odor Type |
buttery |
explosive limit |
2.4-13.0%(V) |
Odor Threshold |
0.00005ppm |
Water Solubility |
200 g/L (20 ºC) |
Merck |
14,2966 |
JECFA Number |
408 |
BRN |
605398 |
Exposure limits |
ACGIH: TWA 0.01 ppm; STEL 0.02 ppm
NIOSH: TWA 5 ppb; STEL 25 ppb |
Stability: |
Stable. Flammable. Incompatible with acids, strong bases, metals, reducing agents, oxidizing agents. Protect from moisture and water. Note low flashpoint. |
InChIKey |
QSJXEFYPDANLFS-UHFFFAOYSA-N |
LogP |
-1.340 |
CAS DataBase Reference |
431-03-8(CAS DataBase Reference) |
NIST Chemistry Reference |
2,3-Butanedione(431-03-8) |
EPA Substance Registry System |
2,3-Butanedione (431-03-8) |
Hazard Codes |
F,Xn |
Risk Statements |
11-20/22-38-41-36/38-20/21/22-37/38 |
Safety Statements |
9-16-26-37/39-36/37/39-39 |
RIDADR |
UN 2346 3/PG 2 |
WGK Germany |
2 |
RTECS |
EK2625000 |
F |
13 |
Autoignition Temperature |
365 °C |
TSCA |
Yes |
HazardClass |
3 |
PackingGroup |
II |
HS Code |
29141990 |
Hazardous Substances Data |
431-03-8(Hazardous Substances Data) |
Toxicity |
LD50 orally in rats: 1580 mg/kg (Jenner) |