Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1-Acetylimidazolidine-2-thione
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Henan Tianfu Chemical Co., Ltd.
China
Product Name: 1-Acetyl-2-imidazolidinone
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Purity: 99.0%
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5391-39-9

5391-39-9 structure

5391-39-9 structure

Name: 1-Acetylimidazolidin-2-one
Chemical Name: 1-Acetyl-2-imidazolidinone
CAS Number: 5391-39-9
Molecular Formula: C₅H₈N₂O₂
Molecular Weight: 128.129
Create Date: 2018-06-22 09:03:05
Modify Date: 2026-06-30 18:43:10

Name	1-Acetyl-2-imidazolidinone
Synonyms	1-ethanoylimidazolidin-2-one N-acetyl-2-iMidazolidazolidinone N-Acetylimidazolidinone n-acetyl-2-imidazolidinone Clonidine Impurity 1（Clonidine Impurity A) MFCD07783646 1-ACETYL-1,3,4,5-TETRAHYDROIMIDAZOLE-2-ONE 1-Acetyl-2-Imidazolidone Acetyl Ethylene Urea 1-Acetyl-imidazolidin-2-one EINECS 226-388-3 1-ACETYL-2-IMIDAZOLIDINONE 1-Acetyl-2-imidazolidinone > Clonidine Impurity A 1-Acetylimidazolidin-2-one Clonidine Impurity A Clonidine Hydrochloride Impurity A RECHEM AQ NN 0041 1-acetyl-2-imidazolidine 2-Imidazolidinone,1-acetyl 1-acetyl-2-imidazol-1-iumone Clonidine IMpurity-A(BP) ACETYL IMIDAZO-2-ONE 1-ACETYL-IMIDAZOLIDIN-2-ONE 1-acetylimidazolidine-2-thione

Density	1.2±0.1 g/cm3
Melting Point	173-175°C
Molecular Formula	C₅H₈N₂O₂
Molecular Weight	128.129
Exact Mass	128.058578
PSA	49.41000
LogP	-1.95
Index of Refraction	1.493

Hazard Codes	Xi
Risk Phrases	R38:Irritating to the skin.
Safety Phrases	S37
WGK Germany	3
HS Code	2933990090

Precursor 6
75-36-5 120-93-4 108-24-7 18773-93-8
1001-53-2 124-38-9
DownStream 7
4205-91-8 41730-71-6 75438-54-9 438000-58-9
67356-94-9 4201-40-5 39958-48-0

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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