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Adipic Acid

Adipic
CAS 124-04-9 · Formula C6H10O4 · MW 146.14 g/mol

The dicarboxylic-acid backbone of nylon 6,6, polyester polyols, and plasticizers. Its principal markets are feedstock for nylon 6,6 resins and fibers, polyester polyols, and plasticizers; it is also used in polyurethane foams, lubricants, adhesives, and as a food acidulant.

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HS Code
2917.12
At a Glance
Material Family
Acids & Salts
Record Type
Pure compound
Primary Role
pH Adjustment · Synthesis Intermediate
Solubility
Slightly soluble in water. Freely soluble in ethanol
Functional Roles
pH Adjustment Synthesis Intermediate
INCI Name
ADIPIC ACID
CosIng Functions
BUFFERINGFRAGRANCE
Industries Served
Beauty & Personal Care Coatings & Construction Plastics & Polymers
Applications & Use Cases
  • ▸ Nylon 6,6: Monomer for nylon 6,6 resins and fibers.
  • ▸ Polyester polyols: Feedstock for polyurethane polyols and foams.
  • ▸ Plasticizers: Raw material for adipate plasticizers and lubricants.
  • ▸ Food acidulant: pH/tartness regulator in dry food mixes.
Physical Properties
Melting Point
151 °C
Boiling Point
337.5 °C at 760 mm Hg: 265 °C at 100 mm Hg: 240.5 °C at 40 mm Hg: 222 °Cat 20 mm Hg: 205.5 °C at 10 mm Hg; 191 °C at 5 mm Hg; 159.5 °C at 1.0 mm Hg
Density
1.36 at 20 °C
Solubility
Slightly soluble in water. Freely soluble in ethanol
Vapor Pressure
3.02X10-5 Pa at 25 °C (2.27X10-7 mm Hg)
Flash Point
191 °C Combustible solid
pH
pH of saturated aqueous solution at 25 °C = 2.7; pH of 0.1% solution at 25 °C = 3.2
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2917 . 12
Chapter 29
Organic chemicals
Heading 29.17
Internationally harmonized (WCO HS)
Subheading 2917.12
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
124-04-9
Molecular Formula
C6H10O4
Molecular Weight
146.14 g/mol
IUPAC Name
hexanedioic acid
INCI Name
ADIPIC ACID
PubChem CID
196
InChI Key
WNLRTRBMVRJNCN-UHFFFAOYSA-N
Synonyms & Trade Names
adipic acid hexanedioic acid Adipinic acid 1,4-Butanedicarboxylic acid Adilactetten Acifloctin Acinetten 1,6-Hexanedioic acid Molten adipic acid Kyselina adipova FEMA No. 2011 Adipinsaure Acide adipique Adipidic acid INS NO.355 AI3-03700
Full Description

Adipic acid (CAS 124-04-9) is a six-carbon dicarboxylic acid. Its principal markets are feedstock for nylon 6,6 resins and fibers, polyester polyols, and plasticizers; it is also used in polyurethane foams, lubricants, adhesives, and as a food acidulant.

Frequently Asked Questions

What is adipic acid used for?

Adipic acid (CAS 124-04-9) is a six-carbon dicarboxylic acid used primarily as a monomer for nylon 6,6 resins and fibers, as feedstock for polyester polyols and polyurethane foams, and as a raw material for adipate plasticizers and lubricants. It is also used as a food acidulant for pH/tartness control. RawSource supplies it in bulk.

What is another name for adipic acid?

Adipic acid is systematically named hexanedioic acid; it has formula C6H10O4 and CAS 124-04-9. It is the dicarboxylic acid central to nylon 6,6 production.

Is adipic acid water soluble?

Adipic acid is a crystalline dicarboxylic acid with moderate, temperature-dependent solubility in water and is freely soluble in many polar solvents. Refer to the technical data sheet for solubility parameters relevant to your process.

What HS code and transport classification apply to adipic acid?

Adipic acid is classified under HS 2917.12 — adipic acid, its salts and esters, and is referenced under UN 3077 for transport where applicable. Confirm the destination tariff line and the SDS transport details for your shipment.

What is the cost of bulk adipic acid?

Pricing depends on grade (technical vs. food), volume, packaging, and destination. RawSource quotes adipic acid per order for bag, super-sack, or bulk quantities; submit your specification and volume for a current bulk quote, with CoA and SDS on shipment.

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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.
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