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Merck

8.04789

2-Imidazolidinone hemihydrate

for synthesis

Synonym(s):

2-Imidazolidinone hemihydrate, N,N′-Ethyleneurea

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About This Item

Empirical Formula (Hill Notation):
C3H6N2O · 0.5H2O
CAS Number:
Molecular Weight:
95.10
MDL number:
UNSPSC Code:
12352115
EC Index Number:
204-436-4
NACRES:
NA.22
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Product Name

2-Imidazolidinone hemihydrate, for synthesis

SMILES string

N1CCNC1=O

InChI

1S/C3H6N2O/c6-3-4-1-2-5-3/h1-2H2,(H2,4,5,6)

InChI key

YAMHXTCMCPHKLN-UHFFFAOYSA-N

vapor pressure

<24 hPa ( 20 °C)

form

crystals

autoignition temp.

420 °C

potency

>5000 mg/kg LD50, oral (Rat)

pH

9-11 (20 °C, 100 g/L in H2O)

bp

335.5 °C/1013.25 hPa (anhydrous substance)

mp

58 °C

transition temp

flash point 265 °C

density

1.3 g/cm3 at 20 °C

bulk density

720 kg/m3

storage temp.

2-30°C

Quality Level

Analysis Note

Assay (ex N): ≥ 97.0 %
Water (K. F.): ≤ 13.0 %
Identity (IR): passes test

pictograms

Exclamation markHealth hazard

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - STOT RE 2

target_organs

Thyroid

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

509.0 °F

flash_point_c

265 °C


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