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Key Documents

8.20664

Sigma-Aldrich

3-Hydroxy-2-butanone

for synthesis

Synonym(s):

3-Hydroxy-2-butanone, Acetyl methyl carbinol, Acetoin

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About This Item

Linear Formula:
(CH3CH(OH)COCH3)2
CAS Number:
51555-24-9
Molecular Weight:
176.21
UNSPSC Code:
12352115
NACRES:
NA.22

Quality Level

200

Assay

≥97.0% (GC)

form

liquid

potency

>5000 mg/kg LD50, oral (Rat)
>5000 mg/kg LD50, skin (Rabbit)

bp

147-148 °C/1013 hPa

mp

20 °C (Above 20°C conversion of dimer to monomer 15°C)

transition temp

flash point 45 °C

density

1.012 g/cm3 at 20 °C

InChI

1S/C4H8O2/c1-3(5)4(2)6/h3,5H,1-2H3

InChI key

ROWKJAVDOGWPAT-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 97.0 % (a/a)
Identity (IR): passes test

Pictograms

Flame
GHS02

Signal Word

Warning

Hazard Statements

H226

Hazard Classifications

Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

113.0 °F

Flash Point(C)

45 °C

Certificates of Analysis (COA)

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