Span 80 - viscosity 1000-2000 mPa.s (20 °C) , CAS No.1338-43-8

CAS: 1338-43-8 Cat. No.: S431923 Formula: C24H44O6 Molecular Weight: 428.61 Beilstein Registry Number: 8172514 EC Number: 215-665-4
AVAILABLE TO ORDER
GRADE & PURITY viscosity 1000-2000 mPa.s (20 °C)
Synonyms
AKOS024431316 | CAS-1338-43-8 | INS NO.494 | Oleate de sorbitan [INN-French] | MO 33F | n-BUTYL HYDRAZINE OXALATE | Sorbitan mono-oletae | Kosteran O 1 | S0060 | Anhydrosorbitol monooleate | Sorbitani oleas [INN-Latin] | Armotan MO | Dianhydromannitol mon
Storage
Room temperature
★
Size
USA
Germany (EU)*
Price
Qty
250ml
S431923-250ml
4 In stock
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$142.90
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Why this grade

viscosity 1000-2000 mPa.s (20 °C) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships 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 435 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
AKOS024431316 | CAS-1338-43-8 | INS NO.494 | Oleate de sorbitan [INN-French] | MO 33F | n-BUTYL HYDRAZINE OXALATE | Sorbitan mono-oletae | Kosteran O 1 | S0060 | Anhydrosorbitol monooleate | Sorbitani oleas [INN-Latin] | Armotan MO | Dianhydromannitol mon
Specifications & Purity
viscosity 1000-2000 mPa.s (20 °C)
Storage
Room temperature
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504765094
Canonical Smiles
CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O
IUPAC Name
[(2R)-2-[(2R,3R,4S)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] (Z)-octadec-9-enoate
InChIKey
NWGKJDSIEKMTRX-AAZCQSIUSA-N
INCHI
1S/C24H44O6/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-22(27)29-19-21(26)24-23(28)20(25)18-30-24/h9-10,20-21,23-26,28H,2-8,11-19H2,1H3/b10-9-/t20-,21+,23+,24+/m0/s1
Isomeric SMILES
CCCCCCCC/C=C\CCCCCCCC(=O)OC[C@H]([C@@H]1[C@@H]([C@H](CO1)O)O)O
WGK Germany
1
RTECS
WG2932400
Molecular Weight
428.61
Beilstein
8172514
Reaxy-Rn
6346073

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
SubclassFatty acid esters
Intermediate Tree Nodes Not available
Direct ParentFatty acid esters
Alternative Parents Tetrahydrofurans  Secondary alcohols  Carboxylic acid esters  Oxacyclic compounds  Monocarboxylic acids and derivatives  Dialkyl ethers  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic heteromonocyclic compounds
Substituents Fatty acid ester - Tetrahydrofuran - Carboxylic acid ester - Secondary alcohol - Carboxylic acid derivative - Dialkyl ether - Ether - Monocarboxylic acid or derivatives - Oxacycle - Organoheterocyclic compound - Carbonyl group - Organic oxide - Alcohol - Organooxygen compound - Hydrocarbon derivative - Organic oxygen compound - Aliphatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as fatty acid esters. These are carboxylic ester derivatives of a fatty acid.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
ESR1 Tclin Estrogen receptor alpha (17718 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
NR3C1 Tclin Glucocorticoid receptor (14987 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.

7 results found

Lot NumberCertificate TypeDateItem
E2612102Certificate of AnalysisMay 21, 2026 S431923
D2609047Certificate of AnalysisApr 15, 2026 S431923
G2306183Certificate of AnalysisJun 20, 2023 S431923
G2306184Certificate of AnalysisJun 20, 2023 S431923
G2306185Certificate of AnalysisJun 20, 2023 S431923
G2306187Certificate of AnalysisJun 20, 2023 S431923
K2514060Certificate of AnalysisJun 20, 2023 S431923
Chemical and Physical Properties
SolubilitySoluble in ethanol at 50mg/mlMiscible with water, ethanol, isopropanol and ether. Insoluble in acetone.
SensitivityMoisture sensitive
Refractive Index1.48
Flash Point(°F)>230℉
Flash Point(°C)>110℃
Molecular Weight428.600 g/mol
XLogP36.000
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count6
Rotatable Bond Count19
Exact Mass428.314 Da
Monoisotopic Mass428.314 Da
Topological Polar Surface Area96.200 Ų
Heavy Atom Count30
Formal Charge0
Complexity453.000
Isotope Atom Count0
Defined Atom Stereocenter Count4
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count1
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds1
Covalently-Bonded Unit Count1
Documents & Articles
A Panoramic Guide to Surfactants: Definitions & Mechanisms, Key Metrics, Application Scenarios, and Selection Navigation (Tables 1–3)
Preparation Methods and Precautions for Silane Coupling Agent Primer Solutions
Why Limonene Can Soften Greasy Soils Yet Is Difficult to Dissolve in Water: Understanding the Cleaning Mechanism and Formulation Applications of Naturally Derived Solvents from Molecular Structure
Interfacial Mechanism and Formulation Applications of AEO-9 (Fatty Alcohol Polyoxyethylene Ether): An Analysis of Emulsification, Wetting, Oil Soil Removal, and Co-Formulation Compatibility
Mechanism of Action and Selection Logic of Defoamers for Daily Chemical Products: Foam Stability, Foam-Breaking Mechanisms, and Representative Raw Material Analysis
Structural Logic of Nonionic Surfactants: Mechanisms of Action, Classification Features, and Selection Principles
Understanding the Four Classes of Surfactants Through Molecular Charge: Application Logic of Anionic, Cationic, Amphoteric and Zwitterionic, and Nonionic Surfactants in Personal Care and Home Care
Antioxidant Mechanisms of Ferulic Acid in Skincare, Vitamin C/E Synergy, and Stable Delivery Applications
Moisturizing Mechanisms of Tremella fuciformis Polysaccharides: From Polysaccharide Structure and Hydration Rheology to Dynamic Film Formation on the Skin Surface
The Logic of Biomimetic Peptide Action in Skin: Sequence and Conformation, Skin Delivery, Stability, and Target Matching
How Coenzyme Q10 Acts on the Skin: Mitochondrial Electron Transfer, Antioxidant Protection of Membrane Lipids, and Lipid-Carrier Delivery
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

How should this product be stored?
Store at room temperature.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 1338-43-8, the molecular formula is C24H44O6, and the molecular weight is 428.61 g/mol. InChIKey NWGKJDSIEKMTRX-AAZCQSIUSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.

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