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Skin conditioning agents and actives

Cetylhydroxyproline palmitamide

Also known as Pseudoceramide 391, Bio 391, L-Proline, 4-hydroxy-1-(1-oxohexadecyl)-, hexadecyl ester, (4R)-

CAS 791838-11-4Formula C37H71NO4Molar mass 593.98 g/molEC 479-990-5
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Cetylhydroxyproline palmitamide chemical structure, C37H71NO4, CAS 791838-11-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
791838-11-4
Formula
C37H71NO4
Molar mass
593.98 g/mol
EC number
479-990-5
HS code
293399
Category
Skin conditioning agents and actives

What is Cetylhydroxyproline palmitamide?

Plain description, key identifiers and synonyms

Cetylhydroxyproline palmitamide is a chemical substance with the molecular formula C37H71NO4 and a molar mass of 593.98 g/mol. Its CAS registry number is 791838-11-4. The IUPAC name is hexadecyl (2S,4R)-1-hexadecanoyl-4-hydroxypyrrolidine-2-carboxylate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
hexadecyl (2S,4R)-1-hexadecanoyl-4-hydroxypyrrolidine-2-carboxylate
CAS number
791838-11-4 CAS number cross-checked
EC numbers
479-990-5, 686-252-8
Molecular formula
C37H71NO4
UNII
74ONU0S62G
INCI name
CETYLHYDROXYPROLINE PALMITAMIDE
InChIKey
GOVINWHEYOSPAK-GPOMZPHUSA-N
InChI
InChI=1S/C37H71NO4/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-42-37(41)35-32-34(39)33-38(35)36(40)30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h34-35,39H,3-33H2,1-2H3/t34-,35+/m1/s1
SMILES
CCCCCCCCCCCCCCCCOC(=O)[C@@H]1C[C@H](CN1C(=O)CCCCCCCCCCCCCCC)O

Synonyms

  • Pseudoceramide 391
  • Bio 391
  • L-Proline, 4-hydroxy-1-(1-oxohexadecyl)-, hexadecyl ester, (4R)-
  • Bio391
  • Bio-391
  • Hexadecyl (4R)-1-hexadecanoyl-4-hydroxy-L-prolinate

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
593.98 g/molcalc.
Exact mass
593.5383 Dacalc.
LogP (octanol/water)
10.45calc.
Topological polar surface area
66.84 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
30calc.
Heavy atoms
42calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.95calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Fails (2 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1CCNC1

C1CCNC1

1 ring, 5 atoms, the Pyrrolidine ring system.

22,348 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms

Hazard statements

  • H413May cause long lasting harmful effects to aquatic life.
Precautionary statements (2)
  • P273Avoid release to the environment.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

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Cetylhydroxyproline palmitamide price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Cosmetic ingredient, INCI name CETYLHYDROXYPROLINE PALMITAMIDE(skin conditioning)

Functional uses

  • Softener and conditioner

Cosmetic functions

  • Skin conditioning

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 Cetylhydroxyproline palmitamide is traded under.

HS 2933.99Indicative HS code

Heterocyclic compounds with nitrogen hetero-atom(s) only, other

World exports in 2024
$12.1B
−31.0% vs 2023, imports $28.8B
2019 to 2024
Top exporters
  1. China30.5%
  2. India * partner reported16.3%
  3. Ireland9.0%
Top importers
  1. Slovenia31.7%
  2. Italy24.2%
  3. United States5.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Cetylhydroxyproline palmitamide, based on the data on this page

What is Cetylhydroxyproline palmitamide?

Cetylhydroxyproline palmitamide is a chemical substance with the molecular formula C37H71NO4 and a molar mass of 593.98 g/mol. Its CAS registry number is 791838-11-4. The IUPAC name is hexadecyl (2S,4R)-1-hexadecanoyl-4-hydroxypyrrolidine-2-carboxylate.

What is the CAS number of Cetylhydroxyproline palmitamide?

The CAS registry number of Cetylhydroxyproline palmitamide is 791838-11-4.

What is the molecular formula and weight of Cetylhydroxyproline palmitamide?

The molecular formula of Cetylhydroxyproline palmitamide is C37H71NO4 and its molar mass is 593.98 g/mol.

What is Cetylhydroxyproline palmitamide used for?

Known uses and roles of Cetylhydroxyproline palmitamide include skin conditioning agents in cosmetics and personal care, skin conditioning and softener and conditioner.

Is Cetylhydroxyproline palmitamide hazardous?

Cetylhydroxyproline palmitamide has a GHS hazard classification. Main hazards: may cause long lasting harmful effects to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cetylhydroxyproline palmitamide?

Cetylhydroxyproline palmitamide is usually classified under HS code 293399 (Heterocyclic compounds with nitrogen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cetylhydroxyproline palmitamide?

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What is the price of Cetylhydroxyproline palmitamide?

Suppliers quote Cetylhydroxyproline palmitamide 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

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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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