Cas no 31121-93-4 (Ibuprofen sodium)

Ibuprofen sodium is a water-soluble salt form of ibuprofen, a widely used nonsteroidal anti-inflammatory drug (NSAID). Its enhanced solubility in aqueous solutions allows for faster absorption and quicker onset of action compared to standard ibuprofen formulations. This property makes it particularly suitable for applications requiring rapid analgesic and anti-inflammatory effects, such as injectable or fast-dissolving oral dosage forms. Ibuprofen sodium retains the pharmacological profile of ibuprofen, including cyclooxygenase (COX) inhibition, while offering improved bioavailability in certain formulations. Its chemical stability and compatibility with excipients further support its utility in pharmaceutical development. The compound is typically supplied as a white to off-white crystalline powder, meeting pharmacopeial standards for purity and potency.
Ibuprofen sodium structure
Ibuprofen sodium structure
Product Name:Ibuprofen sodium
CAS No:31121-93-4
MF:C13H17NaO2
MW:228.26265501976
CID:310021
PubChem ID:329815360
Update Time:2025-06-25

Ibuprofen sodium Chemical and Physical Properties

Names and Identifiers

    • Sodium 2-(4-isobutylphenyl)propanoate
    • Benzeneacetic acid, a-methyl-4-(2-methylpropyl)-,sodium salt (1:1)
    • Ibuprofen sodium salt
    • sodium,2-[4-(2-methylpropyl)phenyl]propanoate
    • (RS)-ibuprofen sodium
    • 2-(4'-isobutylphenyl)propionic acid,sodium salt
    • 2-(p-isobutylphenyl)propionic acid sodium salt
    • EINECS 250-477-6
    • Hydratropic acid,p-isobutyl-,sodium salt
    • Ibuprofen sodium
    • p-Isobutylhydratropic acid sodium salt
    • Sodium 2-(4-isobutylphenyl)propionate
    • Sodium ibuprofen
    • Ibuprofen impurity
    • HY-78131C
    • DTXSID4040501
    • Sodium2-(4-isobutylphenyl)propanoate
    • HS-0087
    • Esprenit (TN)
    • sodium 2-(4'-isobutylphenyl)propionate
    • CB08098
    • CS-0031024
    • Benzeneacetic acid, .alpha.-methyl-4-(2-methylpropyl)-, sodium salt (1:1)
    • AKOS015994627
    • 5264-06-2
    • Advil Menstrual Pain
    • W-110791
    • MFCD00133414
    • IBUPROFENSODIUMSALT
    • 31121-93-4
    • UNII-O0PJ4UZ01U
    • Hydratropic acid, p-isobutyl-, sodium salt
    • CHEMBL1241153
    • SMSF0005424
    • D08059
    • O0PJ4UZ01U
    • NS00076306
    • SCHEMBL139269
    • Benzeneacetic acid, alpha-methyl-4-(2-methylpropyl)-, sodium salt
    • Q27285172
    • PTTPUWGBPLLBKW-UHFFFAOYSA-M
    • sodium;2-[4-(2-methylpropyl)phenyl]propanoate
    • BENZENEACETIC ACID, .ALPHA.-METHYL-4-(2-METHYLPROPYL)-,SODIUM SALT
    • Ibuprofen (sodium)
    • sodium 2-[4-(2-methylpropyl)phenyl]propanoate
    • Ibuprofen sodium hydrate
    • BIM-0005680.P001
    • sodium ibuprofen salt
    • DTXCID2020501
    • Ibuprofen sodium anhydrous
    • G68889
    • MDL: MFCD00133414
    • Inchi: 1S/C13H18O2.Na/c1-9(2)8-11-4-6-12(7-5-11)10(3)13(14)15;/h4-7,9-10H,8H2,1-3H3,(H,14,15);/q;+1/p-1
    • InChI Key: PTTPUWGBPLLBKW-UHFFFAOYSA-M
    • SMILES: [Na+].[O-]C(C(C)C1C=CC(=CC=1)CC(C)C)=O

Computed Properties

  • Exact Mass: 228.11300
  • Monoisotopic Mass: 206.13068
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 16
  • Rotatable Bond Count: 4
  • Complexity: 208
  • Covalently-Bonded Unit Count: 2
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 1
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Surface Charge: 0
  • Tautomer Count: nothing
  • XLogP3: nothing
  • Topological Polar Surface Area: 37.3

Experimental Properties

  • Color/Form: White powder
  • Density: 1.029
  • Melting Point: 75-77 deg C
  • Boiling Point: 319.6 °C at 760 mmHg
  • Flash Point: 216.7 °C
  • Solubility: H2O: 100?mg/mL, may be clear to slightly hazy
  • Stability/Shelf Life: Stable. Incompatible with strong oxidizing agents
  • PSA: 40.13000
  • LogP: 1.73850

Ibuprofen sodium Security Information

  • Hazardous Material transportation number:NONH for all modes of transport
  • WGK Germany:3
  • Safety Instruction: 22-24/25
  • RTECS:MU6641000

Ibuprofen sodium Customs Data

  • HS CODE:2916399090
  • Customs Data:

    China Customs Code:

    2916399090

    Overview:

    2916399090 Other aromatic monocarboxylic acids. VAT:17.0% Tax refund rate:9.0% Regulatory conditions:nothing MFN tariff:6.5% general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to, Acrylic acid\Acrylates or esters shall be packaged clearly

    Summary:

    2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Ibuprofen sodium Pricemore >>

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Ibuprofen sodium Related Literature

Additional information on Ibuprofen sodium

Comprehensive Overview of Ibuprofen Sodium (CAS No. 31121-93-4): Properties, Applications, and Market Trends

Ibuprofen sodium (CAS No. 31121-93-4) is a sodium salt derivative of the widely used nonsteroidal anti-inflammatory drug (NSAID) ibuprofen. This compound is gaining attention due to its enhanced solubility and faster onset of action compared to conventional ibuprofen. With the increasing demand for fast-acting pain relief solutions, ibuprofen sodium has emerged as a preferred choice in both OTC medications and clinical settings. Its chemical structure, C13H17NaO2, ensures rapid absorption, making it ideal for conditions requiring quick therapeutic effects.

The pharmaceutical industry has seen a surge in research around ibuprofen sodium formulations, particularly for migraine relief, post-operative pain management, and sports injuries. Unlike traditional ibuprofen, which may take 30–60 minutes to show effects, ibuprofen sodium often demonstrates efficacy within 15–20 minutes. This aligns with current consumer trends favoring rapid-response analgesics, as evidenced by Google Trends data showing a 40% YoY increase in searches for "fast-acting ibuprofen alternatives."

From a chemical perspective, CAS 31121-93-4 exhibits unique characteristics such as high water solubility (≥50 mg/mL at 25°C) and stability across a pH range of 7.5–9.0. These properties make it suitable for liquid formulations, effervescent tablets, and injectable preparations. Recent studies published in the Journal of Pharmaceutical Sciences highlight its 92% oral bioavailability, outperforming standard ibuprofen's 80%. Such data addresses frequent consumer queries about "why some ibuprofen works faster" and "difference between ibuprofen and ibuprofen sodium."

Market analysis reveals growing adoption of ibuprofen sodium API in generic drug manufacturing, with Grand View Research projecting a 6.8% CAGR (2023–2030) for the sector. This growth is partly driven by patent expirations and the compound's compatibility with pediatric formulations—a key consideration given rising searches for "child-safe pain relievers." Regulatory agencies like the FDA and EMA have approved multiple ibuprofen sodium-based products, including Advil? Film-Coated Tablets in Europe, which leverage the salt's rapid disintegration properties.

Quality standards for CAS 31121-93-4 materials strictly follow USP-NF and EP monographs, ensuring ≤0.1% impurity levels. Analytical techniques like HPLC-UV (λ=264 nm) and DSC (melting point 198–202°C) are routinely employed for verification. These specifications respond to professional inquiries regarding "ibuprofen sodium purity testing" and "pharmacopoeia compliance," which rank among the top 15 search phrases in pharmaceutical quality control forums.

Environmental and safety profiles of ibuprofen sodium have been extensively documented in REACH assessments. Its biodegradability (83% in 28 days per OECD 301F) and low ecotoxicity (LC50 >100 mg/L for Daphnia magna) make it compliant with green chemistry initiatives—a trending topic with 25% more LinkedIn discussions in 2023 compared to 2022. This data directly addresses growing concerns about "NSAID environmental impact" and "sustainable pain management."

Emerging applications include combination therapies with caffeine or acetaminophen, where ibuprofen sodium enhances synergistic effects. Clinical trials (NCT04832747) demonstrate that such combinations improve tension headache relief by 34% versus monotherapies. These findings correlate with a 120% increase in searches for "combination pain relievers" since 2021, reflecting shifting consumer preferences.

In conclusion, ibuprofen sodium (CAS No. 31121-93-4) represents a significant advancement in NSAID technology, combining scientific innovation with market needs for rapid analgesia and formulation flexibility. Its growing prominence in both retail pharmaceuticals and hospital formularies underscores its potential to redefine pain management paradigms in the coming decade.

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