Citric acid
Also known as: 2-Hydroxy-1,2,3-propanetricarboxylic acid, 3-Carboxy-3-hydroxypentane-1,5-dioic acid, β-Hydroxytricarballylic acid, 2-Hydroxypropane-1,2,3-tricarboxylic acid
Citric acid (CAS 77-92-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8O7 and a molecular weight of 192.124 g/mol. Key properties include a melting point of 153-159 °C(lit.), a boiling point of 309.6±42.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 155.2±24.4 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation. It is listed by 1 supplier, from 0.15 to 22.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 77-92-9
- Jingsj CID
- J-42360-5
- Molecular Formula
- C6H8O7
- Molecular Weight
- 192.124 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | AR 500g | ¥76.00 | $0.02 /gBest ¥0.15/g CNY | CN China MOQ 500g | |
In Stock | 99.80% 25kg | ¥550.00 | $3.29 /kg ¥22.00/kg CNY | CN China MOQ 25kg |
Physicochemical Properties
| Melting Point | 153-159 °C(lit.) |
|---|---|
| Boiling Point | 309.6±42.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 155.2±24.4 °C |
| Exact Mass | 192.027008 |
| PSA | 132.13000 |
| LogP | -1.72 |
| Vapor Pressure | 0.0±1.5 mmHg at 25°C |
| Refractive Index | 1.575 |
| Additional Property | 750 g/L (20 ºC) |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Ying TH, et al. Citric acid induces cell-cycle arrest and apoptosis of human immortalized keratinocyte cell line (HaCaT) via caspase- and mitochondrial-dependent signaling pathways. Anticancer Res. 2013 Oct;33(10):4411-20. [2]. Abdel-Salam OM, et al. Citric acid effects on brain and liver oxidative stress in lipopolysaccharide-treated mice. J Med Food. 2014 May;17(5):588-98. [3]. Lacour B, et al. Stimulation by citric acid of calcium and phosphorus bioavailability in rats fed a calcium-rich diet. Miner Electrolyte Metab. 1997;23(2):79-87. [4]. Nagai R, et al. Citric acid inhibits development of cataracts, proteinuria and ketosis in streptozotocin (type 1) diabetic rats. Biochem Biophys Res Commun. 2010 Feb 26;393(1):118-22. |
Customs & Trade Information
| HS Code | 2918140000 |
|---|
Frequently Asked Questions
What is the CAS number of Citric acid?
The CAS number of Citric acid is 77-92-9.
What are the molecular formula and molecular weight of Citric acid?
Citric acid has molecular formula C6H8O7 and molecular weight 192.124 g/mol.
Which suppliers offer Citric acid?
1 supplier(s) listed; reference unit price ¥0.15–22.00 /g.
Is Citric acid hazardous?
Citric acid has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.
What are the upstream and downstream products of Citric acid?
For Citric acid, Upstream Products: ketipic acid, D-Glucose, sucrose; Downstream Products: Diethyl 3-hydroxyglutarate, Zinc citrate dihydrate, Citraconic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Citric acid (CAS 77-92-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42360-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.