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Emollients

3-Hydroxypropyl stearate

Also known as Octadecanoic acid, 3-hydroxypropyl ester, 1,3-Propanediol, monostearate, 3-Stearoyloxy-1-propanol

CAS 10108-23-3Formula C21H42O3Molar mass 342.56 g/molEC 696-135-3
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3-Hydroxypropyl stearate chemical structure, C21H42O3, CAS 10108-23-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
10108-23-3
Formula
C21H42O3
Molar mass
342.56 g/mol
EC number
696-135-3
HS code
291570
Category
Emollients

What is 3-Hydroxypropyl stearate?

Plain description, key identifiers and synonyms

3-Hydroxypropyl stearate is a chemical substance with the molecular formula C21H42O3 and a molar mass of 342.56 g/mol. Its CAS registry number is 10108-23-3. The IUPAC name is 3-hydroxypropyl octadecanoate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-hydroxypropyl octadecanoate
CAS number
10108-23-3 CAS number cross-checkedOther or deprecated CAS: 25190-52-7
EC number
696-135-3
Molecular formula
C21H42O3
UNII
PPN4O3JW0B
INCI name
PPG-15 STEARATE
InChIKey
TVFNPSNDNZSCBM-UHFFFAOYSA-N
InChI
InChI=1S/C21H42O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-18-21(23)24-20-17-19-22/h22H,2-20H2,1H3
SMILES (canonical and isomeric)
CCCCCCCCCCCCCCCCCC(=O)OCCCO

Synonyms

  • Octadecanoic acid, 3-hydroxypropyl ester
  • 1,3-Propanediol, monostearate
  • 3-Stearoyloxy-1-propanol
  • Mono-o-stearoyl-1,3-propanediol
  • 3-hydroxypropyl octadecanoate
  • Stearic acid, 3-hydroxypropyl ester
  • Octadecanoic acid 3-hydroxypropyl ester
  • 3-Hydroxypropyl stearate #
  • 1,3-propanediol monostearate

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
342.56 g/molcalc.
Exact mass
342.3134 Dacalc.
LogP (octanol/water)
6.17calc.
Topological polar surface area
46.53 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
19calc.
Heavy atoms
24calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.95calc.
Formal charge
0calc.
Stereocentres
0calc.
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.

3-Hydroxypropyl stearate suppliers

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3-Hydroxypropyl stearate price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Use classes: Cosmetics.

Cosmetic ingredient, INCI name PPG-15 STEARATE(skin conditioning - emollient)

Functional uses

  • Softener and conditioner

Cosmetic functions

  • Skin conditioning - emollient

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Active in US commerce, Regulatory flags: Exempt from Chemical Data Reporting

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 3-Hydroxypropyl stearate is traded under.

HS 2915.70Indicative HS code

Palmitic acid, stearic acid, their salts and esters

World exports in 2024
$1.25B
+23.7% vs 2023, imports $1.13B
2019 to 2024
Top exporters
  1. Indonesia32.2%
  2. Malaysia23.0%
  3. Singapore6.5%
Top importers
  1. United States10.7%
  2. Germany6.2%
  3. China5.9%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 3-Hydroxypropyl stearate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 3-Hydroxypropyl stearate, based on the data on this page

What is 3-Hydroxypropyl stearate?

3-Hydroxypropyl stearate is a chemical substance with the molecular formula C21H42O3 and a molar mass of 342.56 g/mol. Its CAS registry number is 10108-23-3. The IUPAC name is 3-hydroxypropyl octadecanoate.

What is the CAS number of 3-Hydroxypropyl stearate?

The CAS registry number of 3-Hydroxypropyl stearate is 10108-23-3. Other or deprecated CAS numbers: 25190-52-7.

What is the molecular formula and weight of 3-Hydroxypropyl stearate?

The molecular formula of 3-Hydroxypropyl stearate is C21H42O3 and its molar mass is 342.56 g/mol.

What is 3-Hydroxypropyl stearate used for?

Use classes: Cosmetics.

Is 3-Hydroxypropyl stearate hazardous?

No GHS hazard classification for 3-Hydroxypropyl stearate 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 3-Hydroxypropyl stearate?

3-Hydroxypropyl stearate is usually classified under HS code 291570 (Palmitic acid, stearic acid, their salts and esters). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 3-Hydroxypropyl stearate?

Post a free request on CompoundList and suppliers of 3-Hydroxypropyl stearate will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 3-Hydroxypropyl stearate?

Suppliers quote 3-Hydroxypropyl stearate 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 3-Hydroxypropyl stearate

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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