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HCID 12300Erstellt: 27. Oktober 2026

4-Chlorbuttersure

4-Chlorobutanoic acid · NSC 6391 · NSC 76578 · Cl(CH2)3COOH · Levetiracetam-12 · 4-ChlorobutyricAci · RARECHEM AL BO 0177 · 4-Chlorobutanoicacid

https://huagongshe.com/de/chemical/12300

Molekülstruktur von 4-Chlorbuttersure

Identifikatoren & physikalische Daten

CAS No.627-00-9
SummenformelC4H7ClO2
Durchschnittliche Molmasse122,55 g/mol
Monoisotopische Masse122,01345714 g/mol
SMILESO=C(O)CCCCl
InChIKeyIPLKGJHGWCVSOG-UHFFFAOYSA-N
PubChem CID12300
EC No.210-977-7
DTXSIDDTXSID8060828
Lokaler Name4-Chlorbuttersure

Chemische & physikalische Eigenschaften

XLogP0,6
Polarare Oberfläche (TPSA)37,3
H-Brücken-Donoren1
H-Brücken-Akzeptoren2
Frei drehbare Bindungen3
Schwere Atome7
Formalladung0
Komplexität62,7
SpringerMaterials PropertiesOptical coefficient
Schmelzpunkt12-16 °C(lit.)
Siedepunkt196 °C22 mm Hg(lit.)
Dichte1.24 g/mL at 25 °C(lit.)
Brechungsindexn20/D 1.451(lit.)
Flammpunkt>230 °F
LagerbedingungenSealed in dry,Room Temperature
Löslichkeitsoluble in Ether
Aggregatzustandclear liquid
pKa (Säurekonstante)4.52(at RT℃)
FarbeColorless to Almost colorless
BRN1700264
InChIInChI=1S/C4H7ClO2/c5-3-1-2-4(6)7/h1-3H2,(H,6,7)
InChIKeyIPLKGJHGWCVSOG-UHFFFAOYSA-N
SMILESC(O)(=O)CCCCl
CAS Datenbank627-00-9(CAS DataBase Reference)
EPA chemische Informationen4-Chlorobutyric acid (627-00-9)

Sicherheit & Vorschriften

GHS-EinstufungDangerH302 (97.6%): Harmful if swallowed [Warning Acute toxicity, oral]P260, P264, P270, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P330, P363, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 42 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesAcute Tox. 4 (97.6%)
Wassergefährdungsklasse (WGK)3
TSCA-Inventar-StatusTSCA listed
UN-TransportnummerUN 3265 8/PG 2
Zollcode29159000
R-Sätze (R)22-34
GefahrensymboleC
Sicherheitshinweise (S)26-36/37/39-45
Gefahrenklasse8Acute Tox. 4 OralSkin Corr. 1B
VerpackungsgruppeIII
Lagerklasse8A - Combustible corrosive hazardous materials

Anwendungen & Verwendung

Verwenden

4-Chlorobutanoic Acid is an impurity of Levetiracetam(L331500) which is (S)-enantiomer of Etiracetam (E932970) and the ethyl analog of Piracetam (P500800). Used as an anticonvulsant. Neuroprotective & Neuroresearch Product.