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Merck
CN

457604

β-Propiolactone

97%

Synonym(s):

3-Hydroxypropionic acid lactone, Hydracrylic acid β-lactone

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About This Item

Empirical Formula (Hill Notation):
C3H4O2
CAS Number:
57-57-8
Molecular Weight:
72.06
EC Number:
200-340-1
UNSPSC Code:
12352103
MDL number:
MFCD00005169

Key Documents

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InChI key

VEZXCJBBBCKRPI-UHFFFAOYSA-N

InChI

1S/C3H4O2/c4-3-1-2-5-3/h1-2H2

SMILES string

O=C1CCO1

assay

97%

refractive index

n20/D 1.412 (lit.)

bp

162 °C (lit.)

mp

−33 °C (lit.)

density

1.146 g/mL at 25 °C (lit.)

Disclaimer

During storage insolubles may form due to self-polymerization
OSHA-regulated carcinogen - 29 CFR Part 1910.1013

pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

signalword

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Carc. 1B - Eye Irrit. 2 - Skin Irrit. 2

Storage Class

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

158.0 °F - closed cup

flash_point_c

70 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
14038DU
13171HO
12378LS
10973PU
10490BU

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