Span® 20 - for synthesis , CAS No.1338-39-2

CAS: 1338-39-2 Cat. No.: S1372587 Beilstein Registry Number: 8355657 EC Number: 215-663-3
AVAILABLE TO ORDER
GRADE & PURITY for Synthesis ? Synthesis grade — practical purity for chemical synthesis and preparative work. Use as a cost-effective reagent when analytical purity isn't required.
Synonyms
Sorbitan monolaurate | Sorbitan monododecanoate
Storage
Room temperature
Shipped In
Normal
★
Size
USA
Germany (EU)*
Price
Qty
100g
S1372587-100g
3 In stock
—
$19.90
500g
S1372587-500g
3 In stock
2 In stock
$75.90
Enter a quantity for the sizes you want to add.
🧪
Why this grade

for synthesis for Synthesis for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal 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 27 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Sorbitan monolaurate | Sorbitan monododecanoate
Specifications & Purity
for synthesis
Legal Information
Span is a registered trademark of Croda International PLC
Storage
Room temperature
Shipped In
Normal
Grade
for Synthesis
Names and Identifiers
Pubchem Sid
Canonical Smiles
CCCCCCCCCCCC(=O)OCC(C1C(C(CO1)O)O)O
IUPAC Name
[2-[(2R,3R,4S)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] dodecanoate
InChIKey
LWZFANDGMFTDAV-WYDSMHRWSA-N
INCHI
1S/C18H34O6/c1-2-3-4-5-6-7-8-9-10-11-16(21)23-13-15(20)18-17(22)14(19)12-24-18/h14-15,17-20,22H,2-13H2,1H3/t14-,15?,17+,18+/m0/s1
Isomeric SMILES
CCCCCCCCCCCC(=O)OCC([C@@H]1[C@@H]([C@H](CO1)O)O)O
WGK Germany
1
RTECS
WG2920000
Beilstein
8355657
Reaxy-Rn
11323087
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11323087&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
SubclassFatty acid esters
Intermediate Tree Nodes Not available
Direct ParentFatty acid esters
Alternative Parents Oxolanes  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 - Oxolane - 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





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.

5 results found

Lot NumberCertificate TypeDateItem
A2621114Certificate of AnalysisJun 25, 2025 S1372587
A2621155Certificate of AnalysisJun 25, 2025 S1372587
G2523575Certificate of AnalysisJun 25, 2025 S1372587
G2523581Certificate of AnalysisJun 25, 2025 S1372587
G2523582Certificate of AnalysisJun 25, 2025 S1372587
Chemical and Physical Properties
Flash Point(°F)113 °C
Flash Point(°C)113°C
Molecular Weight346.500 g/mol
XLogP33.700
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count6
Rotatable Bond Count14
Exact Mass346.236 Da
Monoisotopic Mass346.236 Da
Topological Polar Surface Area96.200 Ų
Heavy Atom Count24
Formal Charge0
Complexity335.000
Isotope Atom Count0
Defined Atom Stereocenter Count3
Undefined Atom Stereocenter Count1
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

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