{"id":10538,"date":"2026-03-04T17:26:02","date_gmt":"2026-03-04T17:26:02","guid":{"rendered":"https:\/\/longchangextracts.com\/azelaic-acid-cas-123-99-9-properties-applications-and-uses\/"},"modified":"2026-08-04T01:17:37","modified_gmt":"2026-08-04T01:17:37","slug":"azelaic-acid-cas-123-99-9-properties-applications-and-uses","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/azelaic-acid-cas-123-99-9-properties-applications-and-uses\/","title":{"rendered":"Azelaic Acid Properties and Industrial Sourcing (CAS 123-99-9)"},"content":{"rendered":"
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Azelaic Acid Properties and Industrial Sourcing (CAS 123-99-9)<\/h1>\n

Azelaic Acid (CAS 123-99-9)<\/strong> is a nine-carbon dicarboxylic acid used as a candidate raw material in organic synthesis and in the manufacture of selected resins, plasticizers, adhesives, polyamides and elastomers. Buyers should qualify it through a current specification, analytical methods, lot COA, SDS and application-specific testing\u2014not through the CAS number or a generic use list alone.<\/p>\n

Reference properties of Azelaic Acid<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
Property<\/th>\nSource-labeled reference<\/th>\nProcurement implication<\/th>\n<\/tr>\n<\/thead>\n
Chemical identity<\/td>\nAzelaic Acid \/ nonanedioic acid; CAS 123-99-9; EC 204-669-1<\/td>\nMatch name, CAS and structure before comparing offers<\/td>\n<\/tr>\n
Molekyl\u00e6r formel<\/td>\nC9<\/sub>H16<\/sub>O4<\/sub><\/td>\nDo not use formula alone as a unique identity check<\/td>\n<\/tr>\n
Molekylv\u00e6gt<\/td>\n188.2209 g\/mol (NIST)<\/td>\nUse the precision appropriate to the buyer’s calculation and method<\/td>\n<\/tr>\n
Condensed structure<\/td>\nHOOC-(CH2<\/sub>)7<\/sub>-COOH<\/td>\nConfirms two terminal carboxylic-acid groups<\/td>\n<\/tr>\n
Fusion temperature<\/td>\n379.7\u2013380.0 K, approximately 106.6\u2013106.9 \u00b0C (NIST)<\/td>\nLiterature context only; confirm the current release method\/range<\/td>\n<\/tr>\n
Vandopl\u00f8selighed<\/td>\n2.4 g\/L at 20 \u00b0C in a PubChem compiled record<\/td>\nVerify temperature, pH, solvent system and process conditions<\/td>\n<\/tr>\n
InChIKey<\/td>\nBDJRBEYXGGNYIS-UHFFFAOYSA-N<\/td>\nUseful for database and structure matching<\/td>\n<\/tr>\n
Canonical SMILES<\/td>\nC(CCCC(=O)O)CCCC(=O)O<\/code><\/td>\nMachine-readable connectivity; not a grade or lot specification<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Primary identity and property references: NIST Chemistry WebBook<\/a>, NIST phase-change data<\/a>, PubChem CID 2266<\/a> og ECHA substance information<\/a>.<\/p>\n

For a structure-focused explanation, see Azelaic Acid structure, formula and molecular identity<\/a>.<\/p>\n

What is Azelaic Acid used for industrially?<\/h2>\n

PubChem’s compiled use records list Azelaic Acid in organic synthesis and in selected lacquers, alkyd resins, low-temperature plasticizers, adhesives, polyamides and urethane elastomers. These records establish credible application-screening categories<\/em>; they do not prove that a particular grade, specification or lot will work in the buyer’s formulation or meet destination-market requirements.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Application-screening area<\/th>\nWhy buyers may evaluate it<\/th>\nEvidence still required<\/th>\n<\/tr>\n<\/thead>\n
Organisk syntese<\/td>\nDifunctional carboxylic-acid building block<\/td>\nReaction route, stoichiometry, assay method, impurities and process validation<\/td>\n<\/tr>\n
Polyamides and polyesters<\/td>\nTwo terminal acid groups can participate in condensation chemistry<\/td>\nMonomer purity, functionality, color, water and molecular-weight targets<\/td>\n<\/tr>\n
Alkyd resins and lacquers<\/td>\nPotential diacid component for a defined resin design<\/td>\nFormulation compatibility, cure behavior, color, stability and performance testing<\/td>\n<\/tr>\n
Plasticizers and polyester adhesives<\/td>\nCandidate intermediate for selected ester systems<\/td>\nExact derivative route, low-temperature target, migration and end-use compliance<\/td>\n<\/tr>\n
Urethane elastomer systems<\/td>\nListed in compiled industrial-use references<\/td>\nReaction design, functionality, residuals, compatibility and finished-material validation<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Specification fields to confirm before purchase<\/h2>\n

A useful Azelaic Acid specification should show limits, methods, units and basis. A lot COA should report results against the applicable approved specification. The CAS number does not replace either document.<\/p>\n