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CAS 77-92-9

CAS 77-92-9 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 77-92-9
CAS 77-92-9PubChem CID 311

Citric Acid

Citric acid is a tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. It has a role as a calcium chelator, an antimicrobial agent, a chelator, a food acidity regulator and a fundamental metabolite. It is a conjugate acid of a citrate anion and a citrate(1-). — ChEBI

IUPAC name
2-hydroxypropane-1,2,3-tricarboxylic acid
Molecular formula
C6H8O7
Molecular weight
192.12 g/mol
Exact mass
192.02700259 Da
XLogP3
-1.7
Topological polar surface area
132.0 Ų
Hydrogen-bond donors
4
Hydrogen-bond acceptors
7
Covalent units
1
Defined stereocentres
0

Also known as

Citric acid, anhydrousAcilettenAnhydrous citric acidCitroCitrettenCitric acid anhydrousChemfillHydrocerol A
16 more reported names
1,2,3-Propanetricarboxylic acid, 2-hydroxy-2-hydroxy-1,2,3-propanetricarboxylic acidKyselina citronova2-Hydroxytricarballylic acidbeta-Hydroxytricarballylic acid3-Carboxy-3-hydroxypentane-1,5-dioic acidFEMA No. 2306FEMA Number 2306Citric acid,anhydrousCitricum acidumCitric acid monoglycerideAcidum citricumCitric acid bpXF417D3PSLNSC-30279Citric acid,hydrous
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 77-92-9

1 total
No records found for this CAS number.

How CAS 77-92-9 is used on this site

CAS 77-92-9 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 77-92-9 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.