DL-α-Hydroxystearic acid - ≥99% , CAS No.629-22-1

CAS: 629-22-1 Cat. No.: D304203 Molecular Weight: 300.48 EC Number: 688-468-8
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
2-Hydroxyoctadecanoic acid | 2-hydroxy-octadecanoic acid | FT-0633521 | DL- alpha -Hydroxystearic acid | DS-2681 | LMFA02000120 | DTXSID70415248 | 99EP4WX42O | A899835 | CHEBI:19660 | UNII-99EP4WX42O | D-2-Hydroxyoctadecanoic acid | MFCD00046526 | alpha-H
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
50mg
D304203-50mg
3

$23.90

$31.90
Save $8.00 (25.08%)
250mg
D304203-250mg
3

$67.90

$103.90
Save $36.00 (34.65%)
1g
D304203-1g
3

$176.90

$285.90
Save $109.00 (38.13%)
5g
D304203-5g
3

$529.90

$995.90
Save $466.00 (46.79%)
25g
D304203-25g
3

$1,853.90

$3,433.90
Save $1,580.00 (46.01%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C Ships Wet ice 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
2-Hydroxyoctadecanoic acid | 2-hydroxy-octadecanoic acid | FT-0633521 | DL- alpha -Hydroxystearic acid | DS-2681 | LMFA02000120 | DTXSID70415248 | 99EP4WX42O | A899835 | CHEBI:19660 | UNII-99EP4WX42O | D-2-Hydroxyoctadecanoic acid | MFCD00046526 | alpha-H
Specifications & Purity
≥99%
Biochemical and Physiological Mechanisms
2-Hydroxy C18:0 fatty acid. For use in α-hydroxylated medium chain fatty acid studies and as internal standard.
Storage
Store at 2-8°C
Shipped In
Wet ice
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
≥99%
Names and Identifiers
Canonical SmilesCCCCCCCCCCCCCCCCC(C(=O)O)O
IUPAC Name2-hydroxyoctadecanoic acid
InChIKeyKIHBGTRZFAVZRV-UHFFFAOYSA-N
INCHI1S/C18H36O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17(19)18(20)21/h17,19H,2-16H2,1H3,(H,20,21)
Isomeric SMILES CCCCCCCCCCCCCCCCC(C(=O)O)O
Molecular Weight 300.48
Reaxy-Rn 1791479
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1791479&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 acids and conjugates
Intermediate Tree Nodes Not available
Direct ParentLong-chain fatty acids
Alternative Parents Hydroxy fatty acids  Monosaccharides  Alpha hydroxy acids and derivatives  Secondary alcohols  Monocarboxylic acids and derivatives  Carboxylic acids  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Long-chain fatty acid - Hydroxy fatty acid - Alpha-hydroxy acid - Hydroxy acid - Monosaccharide - Secondary alcohol - Monocarboxylic acid or derivatives - Carboxylic acid - Carboxylic acid derivative - Alcohol - Hydrocarbon derivative - Organic oxide - Carbonyl group - Organic oxygen compound - Organooxygen compound - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms.
External Descriptors Other Octadecanoids
3D Structure
Interactive Chemical Structure Model





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.

6 results found

Lot NumberCertificate TypeDateItem
L2522144Certificate of AnalysisDec 31, 2025 D304203
J2214439Certificate of AnalysisJul 10, 2025 D304203
J2214440Certificate of AnalysisJul 10, 2025 D304203
J2214441Certificate of AnalysisJul 10, 2025 D304203
J2214444Certificate of AnalysisJul 10, 2025 D304203
J2214445Certificate of AnalysisJul 10, 2025 D304203
Chemical and Physical Properties
Molecular Weight300.500 g/mol
XLogP37.500
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count16
Exact Mass300.266 Da
Monoisotopic Mass300.266 Da
Topological Polar Surface Area57.500 Ų
Heavy Atom Count21
Formal Charge0
Complexity229.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count1
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
Reviews

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