Stearic Anhydride - ≥97%(T) , CAS No.638-08-4

CAS: 638-08-4 Cat. No.: S161379 Molecular Weight: 550.95 Beilstein Registry Number: 2(4)1239 EC Number: 211-318-6 PubChem CID: 69485
AVAILABLE TO ORDER
GRADE & PURITY ≥97%(T)
Synonyms
AKOS016015529 | SY051776 | Octadecanoic anhydride # | S0083 | EINECS 211-318-6 | Octadecanoic anhydride | Stearic anhydride | Octadecanoic acid, anhydride | FT-0632713 | Benzene-1,2-disulfonic acid dichloride;o-Benzenedisulfonylchlorid | MFCD00009004 | AS
Storage
Argon charged,Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
S161379-5g
2

$20.90

$31.90
Save $11.00 (34.48%)
25g
S161379-25g
1

$75.90

$113.90
Save $38.00 (33.36%)
100g
S161379-100g
2

$192.90

$289.90
Save $97.00 (33.46%)
Enter a quantity for the sizes you want to add.
🧪

Why this grade

≥97%(T) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Argon charged,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 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
AKOS016015529 | SY051776 | Octadecanoic anhydride # | S0083 | EINECS 211-318-6 | Octadecanoic anhydride | Stearic anhydride | Octadecanoic acid, anhydride | FT-0632713 | Benzene-1, 2-disulfonic acid dichloride;o-Benzenedisulfonylchlorid | MFCD00009004 | AS
Specifications & Purity
≥97%(T)
Storage
Argon charged, Room temperature
Shipped In
Normal
Purity
≥97%(T)
Names and Identifiers
Canonical SmilesCCCCCCCCCCCCCCCCCC(=O)OC(=O)CCCCCCCCCCCCCCCCC
IUPAC Nameoctadecanoyl octadecanoate
InChIKeyWVJVHUWVQNLPCR-UHFFFAOYSA-N
INCHI1S/C36H70O3/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-35(37)39-36(38)34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-34H2,1-2H3
Isomeric SMILES CCCCCCCCCCCCCCCCCC(=O)OC(=O)CCCCCCCCCCCCCCCCC
PubChem CID 69485
Molecular Weight 550.95
Beilstein 2(4)1239
Reaxy-Rn 445979

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
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassDicarboxylic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentDicarboxylic acids and derivatives
Alternative Parents Carboxylic acid anhydrides  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Dicarboxylic acid or derivatives - Carboxylic acid anhydride - 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 dicarboxylic acids and derivatives. These are organic compounds containing exactly two carboxylic acid groups.
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.

8 results found

Lot NumberCertificate TypeDateItem
F2525473Certificate of AnalysisFeb 18, 2025 S161379
F2525474Certificate of AnalysisFeb 18, 2025 S161379
F2525484Certificate of AnalysisFeb 18, 2025 S161379
A2506293Certificate of AnalysisSep 01, 2023 S161379
J2308510Certificate of AnalysisSep 01, 2023 S161379
J2308511Certificate of AnalysisSep 01, 2023 S161379
J2308512Certificate of AnalysisSep 01, 2023 S161379
F2214239Certificate of AnalysisAug 11, 2021 S161379
Chemical and Physical Properties
SensitivityHygroscopic
Melt Point(°C)71 °C
Molecular Weight550.900 g/mol
XLogP316.700
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count34
Exact Mass550.532 Da
Monoisotopic Mass550.532 Da
Topological Polar Surface Area43.400 Ų
Heavy Atom Count39
Formal Charge0
Complexity458.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
References
1. Ran Zhang, Xue-Qing Song, Rui-Ping Liu, Zhong-Ying Ma, Jing-Yuan Xu.  (2019)  Fuplatin: An Efficient and Low-Toxic Dual-Prodrug.  JOURNAL OF MEDICINAL CHEMISTRY,      [PMID:31002510] [10.1021/acs.jmedchem.9b00128]
2. Xuwen Zhang, Xuexue Dong, Youting Wang, Juanjuan Bian, Sajid Ali, Dongren Cai, Kang Sun, Xiaoping Rao, Jianchun Jiang, Guowu Zhan.  (2025)  Metal–Organic Frameworks-Derived Cobalt Catalyst Supported on Biochar for Efficient Deoxygenation of Stearic Acid.  INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,      [PMID:] [10.1021/acs.iecr.4c03679]
Solution Calculators
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