8.21903

4-Methylbenzoic acid

for synthesis

• Synonym(e): 4-Methylbenzoic acid, p-Toluic acid
• Lineare Formel: 4-(CH₃)C₆H₄COOH
• CAS-Nummer: 99-94-5
• Molekulargewicht: 136.15
• EC Index Number: 202-803-3
• UNSPSC Code: 12352106
• MDL number: MFCD00002565

Eigenschaften

• vapor pressure: 0.02 hPa ( 70 °C)
• Quality Segment: 200
• assay: ≥98.0% (HPLC)
• form: powder
• autoignition temp.: 570 °C
• potency: 400 mg/kg LD₅₀, oral (Rat)
• bp: 274 °C/1013 hPa
• mp: 179-181 °C
• transition temp: flash point 181 °C
• solubility: 0.3 g/L
• density: 1.06 g/cm³ at 20 °C
• bulk density: 700 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/C8H8O2/c1-6-2-4-7(5-3-6)8(9)10/h2-5H,1H3,(H,9,10)
• InChI key: LPNBBFKOUUSUDB-UHFFFAOYSA-N

Beschreibung

Analysis Note

Assay (HPLC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 179 °C
Melting range (upper value): ≤ 182 °C
Identity (IR): passes test

Sicherheitshinweise

• pictograms: GHS07
• signalword: Warning
• hcodes: H317
• pcodes: P261 - P272 - P280 - P302 + P352 - P333 + P313 - P362 + P364
• Hazard Classifications: Skin Sens. 1
• Lagerklasse: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: 357.8 °F
• flash_point_c: 181 °C