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CAS 877-24-7

CAS 877-24-7 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 877-24-7

CAS 877-24-7PubChem CID 23676735

Potassium hydrogen phthalate

IUPAC name: potassium 2-carboxybenzoate

Molecular formula: C8H5KO4
Molecular weight: 204.22 g/mol
Exact mass: 203.98249012 Da
Topological polar surface area: 77.4 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 4
Covalent units: 2
Defined stereocentres: 0

Also known as

Potassium biphthalateHydrogen potassium phthalatePotassium acid phthalate1,2-Benzenedicarboxylic acid, monopotassium saltGG9121M623RefChem:867719212-889-4Monopotassium phthalate

16 more reported names

Phthalic acid monopotassium saltpotassium;2-carboxybenzoatePotassium phthalate monobasicKHP1,2-Benzenedicarboxylic acid, potassium salt (1:1)P0309Phthalic acid monopotassiumF1905-7235Phthalic acid, monopotassium saltPotassium phthalate monobasic pound KHP pound(c)EINECS 212-889-4AI3-51765UNII-GG9121M623Phthalic acid monopopotassium hydrogen-phthalateC8H5KO4

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External database identifiers

ChEMBL:CHEMBL3187152
EPA DTXSID:DTXSID0042167

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 877-24-7

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How CAS 877-24-7 is used on this site

CAS 877-24-7 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share 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 877-24-7 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.