9(Z),11(E)-Octadecadienoic acid - ≥98% , CAS No.2540-56-9

CAS: 2540-56-9 Cat. No.: Z275725 Molecular Weight: 280.45 EC Number: 987-107-4
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
BRD-K80025777-001-01-4 | cis-9,trans-11-conjugated-linoleic-acid | c9t11CLA | NSC-7886 | CHEBI:32798 | c9,t11-CLA | Conjugated (9Z,11E)-Linoleic acid | C18:2n-7,9 | starbld0000695 | (9Z,11E)-Octadecadienoate | 9Z, 11E-Linoleic acid | HMS3649F03 | cis-9,tr
Storage
Protected from light,Store at -20°C,Argon charged,Desiccated
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
10mg
Z275725-10mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$139.90
25mg
Z275725-25mg
2
$239.90
50mg
Z275725-50mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$339.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Protected from light,Store at -20°C,Argon charged,Desiccated Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
BRD-K80025777-001-01-4 | cis-9, trans-11-conjugated-linoleic-acid | c9t11CLA | NSC-7886 | CHEBI:32798 | c9, t11-CLA | Conjugated (9Z, 11E)-Linoleic acid | C18:2n-7, 9 | starbld0000695 | (9Z, 11E)-Octadecadienoate | 9Z, 11E-Linoleic acid | HMS3649F03 | cis-9, tr
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
Conjugated linoleic acid. For use as standard and in biological systems. See similar products
Storage
Protected from light, Store at -20°C, Argon charged, Desiccated
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Note
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Purity
≥98%
Names and Identifiers
Pubchem Sid504763310
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504763310
Canonical SmilesCCCCCC\C=C\C=C/CCCCCCCC(O)=O
IUPAC Name(9Z,11E)-octadeca-9,11-dienoic acid
InChIKeyJBYXPOFIGCOSSB-GOJKSUSPSA-N
INCHI1S/C18H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h7-10H,2-6,11-17H2,1H3,(H,19,20)/b8-7+,10-9-
Isomeric SMILES CCCCCC/C=C/C=C\CCCCCCCC(=O)O
Molecular Weight 280.45
Reaxy-Rn 8395347
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=8395347&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassLipids and lipid-like molecules
ClassFatty Acyls
SubclassLineolic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentLineolic acids and derivatives
Alternative Parents Long-chain fatty acids  Unsaturated fatty acids  Straight chain fatty acids  Monocarboxylic acids and derivatives  Carboxylic acids  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Octadecanoid - Long-chain fatty acid - Fatty acid - Unsaturated fatty acid - Straight chain fatty acid - Monocarboxylic acid or derivatives - Carboxylic acid - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as lineolic acids and derivatives. These are derivatives of lineolic acid. Lineolic acid is a polyunsaturated omega-6 18 carbon long fatty acid, with two CC double bonds at the 9- and 12-positions.
External Descriptors Unsaturated fatty acids
3D Structure
Interactive Chemical Structure Model





Associated Targets(non-human)
TRXR Thioredoxin reductase (20 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

4 results found

Lot NumberCertificate TypeDateItem
H2529552Certificate of AnalysisJun 09, 2026 Z275725
H2529553Certificate of AnalysisJun 09, 2026 Z275725
H2529554Certificate of AnalysisJun 09, 2026 Z275725
K2208685Certificate of AnalysisOct 29, 2025 Z275725
Chemical and Physical Properties
SolubilitySoluble in ethanol and in DMSO
SensitivityAir sensitive;Light sensitive
Molecular Weight280.400 g/mol
XLogP37.100
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count14
Exact Mass280.24 Da
Monoisotopic Mass280.24 Da
Topological Polar Surface Area37.300 Ų
Heavy Atom Count20
Formal Charge0
Complexity267.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count2
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds2
Covalently-Bonded Unit Count1
Documents & Articles
Solution Calculators
Reviews

Customer Reviews

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