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Safety Information

8.22011

Sigma-Aldrich

Dehydroacetic acid

for synthesis

Synonym(s):

Dehydroacetic acid, 3-Acetyl-3,4-dihydro-6-methyl-2H-pyran-2,4-dione

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About This Item

Empirical Formula (Hill Notation):
C8H8O4
CAS Number:
Molecular Weight:
168.15
MDL number:
UNSPSC Code:
12352115
EC Index Number:
208-293-9
NACRES:
NA.22

vapor pressure

0.001 hPa ( 20 °C)

Quality Level

Assay

≥99.0% (acidimetric)

form

powder

autoignition temp.

336 °C

potency

1000 mg/kg LD50, oral (Rat)

pH

4 (20 °C, 2 g/L in H2O)

bp

270 °C/1013 hPa

mp

109-111 °C

transition temp

flash point 157 °C

bulk density

700 kg/m3

storage temp.

2-30°C

InChI

1S/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,7H,1-2H3

InChI key

PGRHXDWITVMQBC-UHFFFAOYSA-N

Analysis Note

Assay (acidimetric): ≥ 99.0 %
Melting range (lower value): ≥ 109 °C
Melting range (upper value): ≤ 112 °C
Identity (IR): passes test

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

314.6 °F

Flash Point(C)

157 °C


Regulatory Listings

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ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names


Certificates of Analysis (COA)

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