8.00820

Isopentanoic acid

for synthesis

• Synonym(s): Isopentanoic acid, 3-Methylbutyric acid
• Linear Formula: (CH₃)₂CHCH₂COOH
• CAS Number: 503-74-2
• Molecular Weight: 102.13
• MDL number: MFCD00002726
• UNSPSC Code: 12352106
• EC Index Number: 207-975-3

Properties

• vapor pressure: 0.5 hPa ( 20 °C)
• Quality Level: 200
• Assay: ≥99.0% (GC)
• form: liquid
• autoignition temp.: 420 °C
• potency: >2000 mg/kg LD₅₀, oral (Rat); >3000 mg/kg LD₅₀, skin (Rabbit)
• expl. lim.: 1.5-6.8 % (v/v)
• pH: 3.1 (25 °C, 10 g/L in H₂O)
• bp: 176 °C/1013 hPa
• mp: -31 °C
• transition temp: flash point 74 °C
• solubility: 48 g/L
• density: 0.93 g/cm³ at 20 °C
• storage temp.: 2-30°C
• InChI: 1S/C5H10O2/c1-4(2)3-5(6)7/h4H,3H2,1-2H3,(H,6,7)
• InChI key: GWYFCOCPABKNJV-UHFFFAOYSA-N

Description

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Water (K. F.): ≤ 0.20 %
Density (d 20 °C/ 4 °C): 0.925 - 0.926
Identity (IR): passes test

Safety Information

• Pictograms: GHS05
• Signal Word: Danger
• Hazard Statements: H314
• Precautionary Statements: P280 - P301 + P330 + P331 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1B
• Storage Class Code: 8A - Combustible, corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): 176.0 °F - Pensky-Martens closed cup
• Flash Point(C): 80 °C - Pensky-Martens closed cup