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HCID 11268Erstellt: 26. Oktober 2026

2-Brom-3-methylbuttersure

2-BROMOISOVALERIC ACID · 2-BROMO-3-METHYLBUTANOIC ACID · 2-broMo acid · 2-BromoisovaL · UNII:M69LGV465C · 2-Bromo-iso-acid · -Bromo-iso-valericacid · A-BROMOISOVALERIC ACID

https://huagongshe.com/de/chemical/11268

Molekülstruktur von 2-Brom-3-methylbuttersure

Identifikatoren & physikalische Daten

CAS No.565-74-2
SummenformelC5H9BrO2
Durchschnittliche Molmasse181,03 g/mol
Monoisotopische Masse179,97859 g/mol
SMILESCC(C)C(Br)C(=O)O
InChIKeyUEBARDWJXBGYEJ-UHFFFAOYSA-N
PubChem CID11268
EC No.209-291-0
DTXSIDDTXSID30870617
Lokaler Name2-Brom-3-methylbuttersure

Chemische & physikalische Eigenschaften

XLogP1,9
Polarare Oberfläche (TPSA)37,3
H-Brücken-Donoren1
H-Brücken-Akzeptoren2
Frei drehbare Bindungen2
Schwere Atome8
Formalladung0
Komplexität90
Schmelzpunkt39-42 °C(lit.)
Siedepunkt124-126 °C20 mm Hg(lit.)
Dichte1.4210 (rough estimate)
Brechungsindex1.4790 (estimate)
Flammpunkt107°C
LagerbedingungenStorage temp. 2-8°C
Löslichkeitalcohol: soluble(lit.)
AggregatzustandCrystalline Powder or Chunks
pKa (Säurekonstante)3.00±0.10(Predicted)
FarbeWhite to beige
Merck14,1422
BRN1721146
Dielektrizitätskonstante6.5(20.0℃)
InChI1S/C5H9BrO2/c1-3(2)4(6)5(7)8/h3-4H,1-2H3,(H,7,8)
InChIKeyUEBARDWJXBGYEJ-UHFFFAOYSA-N
SMILESCC(C)C(Br)C(O)=O
CAS Datenbank565-74-2(CAS DataBase Reference)
NIST chemische InformationenButanoic acid, 2-bromo-3-methyl-(565-74-2)
EPA chemische InformationenButanoic acid, 2-bromo-3-methyl- (565-74-2)

Sicherheit & Vorschriften

GHS-EinstufungDangerH302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]H312 (93.8%): Harmful in contact with skin [Warning Acute toxicity, dermal]H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P264, P270, P280, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P362+P364, P363, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 48 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Regulatorische InformationenChemical: Butanoic acid, 2-bromo-3-methyl-Status: Active Update: 01-04-2020 https://echa.europa.eu/registration-dossier/-/registered-dossier/30273
Hazard Classes and CategoriesAcute Tox. 4 (100%)Acute Tox. 4 (93.8%)Skin Corr. 1B (100%)
Wassergefährdungsklasse (WGK)3
TSCA-Inventar-StatusTSCA listed
UN-TransportnummerUN 3261 8/PG 2
Zollcode29159080
RTECS-Nr.ES8055000
R-Sätze (R)21/22-34
GefahrensymboleC
Sicherheitshinweise (S)26-36/37/39-45
Gefahrenklasse8Acute Tox. 4 OralSkin Corr. 1B
VerpackungsgruppeIII
Lagerklasse8A - Combustible corrosive hazardous materials

Anwendungen & Verwendung

Verwenden

2-Bromo-3-methylbutyric acid was used to study the conjugation of glutathione (GSH) with (R)-and (S)-α-bromoisovaleric acid (BI) in the rat 1 .