W230618

Citric acid

≥99.5%, FCC, FG

• Linear Formula: HOC(COOH)(CH₂COOH)₂
• CAS Number: 77-92-9
• Molecular Weight: 192.12
• FEMA Number: 2306
• Beilstein: 782061
• EC Number: 201-069-1
• Council of Europe no.: 20c
• MDL number: MFCD00011669
• UNSPSC Code: 12164502
• PubChem Substance ID: 24900992
• NACRES: NA.21

Properties

• biological source: synthetic
• Quality Level: 400
• grade: FG; Halal; Kosher
• reg. compliance: EU Regulation 1334/2008 & 178/2002; FCC; FDA 21 CFR 117; FDA 21 CFR 184.1033
• Assay: ≥99.5%
• form: powder or granules
• expl. lim.: 8 %, 65 °F
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• mp: 153-159 °C (lit.)
• solubility: water: 383 g/L at 25 °C
• cation traces: As: ≤3.0 ppm; Cd: ≤1.0 ppm; Hg: ≤1.0 ppm; Pb: ≤0.5 ppm
• application(s): flavors and fragrances
• Documentation: see Safety & Documentation for available documents
• food allergen: no known allergens
• Organoleptic: odorless
• SMILES string: OC(=O)CC(O)(CC(O)=O)C(O)=O
• InChI: 1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
• InChI key: KRKNYBCHXYNGOX-UHFFFAOYSA-N
• Gene Information: human ... SRC(6714)

Description

General description

Citric acid is an important organic acid that is extensively used in the food industry as a pH control agent, flavor modifier, an antimicrobial agent, a leavening agent and as an antioxidant. The treatment of potato-based foods with a combination of citric acid and glycine in low concentration may reduce the formation of acrylamide with minimal effect on the flavor. Citric acid is also an effective anti-browning agent of food and beverages due to its ability to inhibit the activity of polyphenol oxidase (PPO) enzyme responsible for browning.

Application

• Integrated time-series biochemical, transcriptomic, and metabolomic analyses reveal key metabolites and signaling pathways in the liver of the Chinese soft-shelled turtle (Pelodiscus sinensis) against Aeromonas hydrophila infection.: This study uses a combination of biochemical, transcriptomic, and metabolomic approaches to identify critical metabolites and pathways, including those involving citric acid, in the response of the Chinese soft-shelled turtle to bacterial infection (Ji et al., 2024).


• Enhancement of vitamin B(6) production driven by omics analysis combined with fermentation optimization.: The study integrates omics analyses with fermentation strategies to boost vitamin B6 production, identifying citric acid as a pivotal metabolic component in the optimization process (Tian et al., 2024).

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H319 - H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves