CompoundList
Sign in
Cleansing surfactants

2-Hydroxystearic acid

Also known as 2-Hydroxyoctadecanoic acid, alpha-Hydroxystearic acid, Octadecanoic acid, 2-hydroxy-

CAS 629-22-1Formula C18H36O3Molar mass 300.48 g/molEC 688-468-8
1 supplier listed
Get quotes See the supplier
2-Hydroxystearic acid chemical structure, C18H36O3, CAS 629-22-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
629-22-1
Formula
C18H36O3
Molar mass
300.48 g/mol
EC number
688-468-8
HS code
291819
Category
Cleansing surfactants

What is 2-Hydroxystearic acid?

Plain description, key identifiers and synonyms

2-hydroxyoctadecanoic acid is a long-chain fatty acid that is stearic (octadecanoic) acid substituted at position 2 by a hydroxy group. It has a role as a human metabolite. It is a 2-hydroxy fatty acid and a hydroxyoctadecanoic acid. It is a conjugate acid of a 2-hydroxyoctadecanoate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-hydroxyoctadecanoic acid
CAS number
629-22-1Other or deprecated CAS: 1330-70-7, 17773-30-7
EC number
688-468-8
Molecular formula
C18H36O3
UNII
99EP4WX42O
MDL number
MFCD00046526
INCI name
2-HYDROXYSTEARIC ACID
InChIKey
KIHBGTRZFAVZRV-UHFFFAOYSA-N
InChI
InChI=1S/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)
SMILES (canonical and isomeric)
CCCCCCCCCCCCCCCCC(C(=O)O)O

Synonyms

  • 2-Hydroxyoctadecanoic acid
  • alpha-Hydroxystearic acid
  • Octadecanoic acid, 2-hydroxy-
  • alpha-hydroxyoctadecanoic acid
  • dl-2-hydroxystearic acid
  • Octadecanoic acid, hydroxy-
  • 2-hydroxy-octadecanoic acid
  • DL-alpha-Hydroxystearic acid
  • D-2-Hydroxyoctadecanoic acid
  • DL-2-hydroxy stearic acid
  • 2-Hydroxystearate
  • DL- alpha -Hydroxystearic acid
  • DL-a-Hydroxystearic acid
  • alpha-H
  • 2-HODA
  • DL-|A-Hydroxystearic acid
  • 2-Hydroxyoctadecanoic acid #
  • DL-alpha-Hydroxystearic acid, >=99%
  • Stearic acid, alpha-hydroxy-
  • (+/-)-alpha-hydroxystearic acid

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
300.48 g/molcalc.
Exact mass
300.2664 Dacalc.
LogP (octanol/water)
5.3calc.
Topological polar surface area
57.53 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
16calc.
Heavy atoms
21calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.94calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

2-Hydroxystearic acid suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

See the supplier

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

1 supplier in 1 country

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

2-Hydroxystearic acid price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Cosmetic ingredient, INCI name 2-HYDROXYSTEARIC ACID(hair conditioning, skin protecting, surfactant - cleansing, skin conditioning - miscellaneous)

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite

Cosmetic functions

  • Hair conditioning
  • Skin conditioning - miscellaneous
  • Skin protecting
  • Surfactant - cleansing

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 2-Hydroxystearic acid is traded under.

HS 2918.19Indicative HS code

Carboxylic acids with alcohol function but without other oxygen function, their…

World exports in 2024
$1.37B
+0.5% vs 2023, imports $1.18B
2019 to 2024
Top exporters
  1. China23.7%
  2. Italy14.7%
  3. India * partner reported12.0%
Top importers
  1. Germany11.7%
  2. South Korea9.8%
  3. Italy9.6%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 2-Hydroxystearic acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2-Hydroxystearic acid, based on the data on this page

What is 2-Hydroxystearic acid?

2-hydroxyoctadecanoic acid is a long-chain fatty acid that is stearic (octadecanoic) acid substituted at position 2 by a hydroxy group. It has a role as a human metabolite. It is a 2-hydroxy fatty acid and a hydroxyoctadecanoic acid. It is a conjugate acid of a 2-hydroxyoctadecanoate.

What is the CAS number of 2-Hydroxystearic acid?

The CAS registry number of 2-Hydroxystearic acid is 629-22-1. Other or deprecated CAS numbers: 1330-70-7, 17773-30-7.

What is the molecular formula and weight of 2-Hydroxystearic acid?

The molecular formula of 2-Hydroxystearic acid is C18H36O3 and its molar mass is 300.48 g/mol.

What is 2-Hydroxystearic acid used for?

Known uses and roles of 2-Hydroxystearic acid include surfactants and cleansing agents in cosmetics and personal care, skin conditioning agents in cosmetics and personal care, hair conditioning agents in cosmetics and personal care, animal metabolite, eukaryotic metabolite and 7 more.

Is 2-Hydroxystearic acid hazardous?

No GHS hazard classification for 2-Hydroxystearic acid is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of 2-Hydroxystearic acid?

2-Hydroxystearic acid is usually classified under HS code 291819 (Carboxylic acids with alcohol function but without other oxygen function, their…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2-Hydroxystearic acid?

CompoundList lists 1 supplier of 2-Hydroxystearic acid in India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 2-Hydroxystearic acid in India?

1 supplier in India list 2-Hydroxystearic acid on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 2-Hydroxystearic acid?

Suppliers quote 2-Hydroxystearic acid on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 2-Hydroxystearic acid

Get quotes for 2-Hydroxystearic acid

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell 2-Hydroxystearic acid
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of 2-Hydroxystearic acid with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/2-hydroxystearic-acid-629-22-1" title="2-Hydroxystearic acid structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Cleansing surfactants or HS code 291819

1 supplier
Free quotes, contact stays private
Get quotes