8.22133

Propionaldehyde

for synthesis

• Synonym(s): Propionaldehyde, Propanal
• Empirical Formula (Hill Notation): C₃H₆O
• CAS Number: 123-38-6
• Molecular Weight: 58.08
• MDL number: MFCD00007020
• UNSPSC Code: 12352114
• EC Index Number: 204-623-0

Properties

• vapor pressure: 343 hPa ( 20 °C)
• Quality Level: 200
• assay: ≥98% (GC)
• form: liquid
• autoignition temp.: 175 °C
• potency: 1410 mg/kg LD₅₀, oral (Rat); 2460 mg/kg LD₅₀, skin (Rabbit)
• expl. lim.: 2.3-21 % (v/v)
• bp: 47-48 °C/1013 hPa
• mp: -81 °C
• transition temp: flash point -40 °C
• density: 0.81 g/cm³ at 20 °C
• InChI: 1S/C3H6O/c1-2-3-4/h3H,2H2,1H3
• InChI key: NBBJYMSMWIIQGU-UHFFFAOYSA-N

Description

Application

• Propanethiol Oxidation Pathway: Propionaldehyde is a critical intermediary in the microbial catabolism of propanethiol, which is essential for environmental bioremediation strategies using Pseudomonas putida. This application in biotechnology suggests promising approaches to industrial waste treatment (Qiao et al., 2024).


• Chemical Synthesis of mRNA Probes: Propionaldehyde serves as a reagent in the synthesis of modified guanosine phosphate derivatives, which are vital for mRNA labeling in biochemistry and pharmaceutical applications, highlighting its role in advanced molecular biology techniques (Senthilvelan et al., 2023).


• VOC Treatment in Environmental Engineering: In environmental engineering, propionaldehyde is analyzed as a volatile organic compound (VOC) from service station emissions, underlining its impact on air quality and secondary pollution (Hu et al., 2023).

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.797 - 0.802
Water (GC): ≤ 2.0 % (a/a)
Identity (IR): passes test

Safety Information

• pictograms: GHS02,GHS05,GHS07
• signalword: Danger
• hcodes: H225 - H302 + H332 - H315 - H318 - H335
• pcodes: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 1
• flash_point_f: -22.0 °F - closed cup
• flash_point_c: -30 °C - closed cup