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Lipids and fatty acids

Exosurf

Also known as Dipalmitoylphosphatidylcholine, hexadecanol, tyloxapol drug combination, dipalmitoylphosphatidylcholine-hexadecanol-tyloxapol

CAS 99732-49-7Formula C73H142NO12PMolar mass 1,256.91 g/mol
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Exosurf chemical structure, C73H142NO12P, CAS 99732-49-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
99732-49-7
Formula
C73H142NO12P
Molar mass
1,256.91 g/mol
HS code
292390
Category
Lipids and fatty acids

What is Exosurf?

Plain description, key identifiers and synonyms

Exosurf is a chemical substance with the molecular formula C73H142NO12P and a molar mass of 1,256.91 g/mol. Its CAS registry number is 99732-49-7. The IUPAC name is [(2R)-2,3-di(hexadecanoyloxy)propyl] 2-(trimethylazaniumyl)ethyl phosphate, formaldehyde, hexadecan-1-ol, oxirane, 4-(2,4,4-trimethylpentan-2-yl)phenol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[(2R)-2,3-di(hexadecanoyloxy)propyl] 2-(trimethylazaniumyl)ethyl phosphate, formaldehyde, hexadecan-1-ol, oxirane, 4-(2,4,4-trimethylpentan-2-yl)phenol
CAS number
99732-49-7 CAS number cross-checked
Molecular formula
C73H142NO12P
InChIKey
ZDDAZGQRVDTIEP-QEXHLBBPSA-N
InChI
InChI=1S/C40H80NO8P.C16H34O.C14H22O.C2H4O.CH2O/c1-6-8-10-12-14-16-18-20-22-24-26-28-30-32-39(42)46-36-38(37-48-50(44,45)47-35-34-41(3,4)5)49-40(43)33-31-29-27-25-23-21-19-17-15-13-11-9-7-2;1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17;1-13(2,3)10-14(4,5)11-6-8-12(15)9-7-11;1-2-3-1;1-2/h38H,6-37H2,1-5H3;17H,2-16H2,1H3;6-9,15H,10H2,1-5H3;1-2H2;1H2/t38-;;;;/m1..../s1
Canonical SMILES
C1CO1.C=O.CC(C)(C)CC(C)(C)c1ccc(O)cc1.CCCCCCCCCCCCCCCC(=O)OCC(COP(=O)([O-])OCC[N+](C)(C)C)OC(=O)CCCCCCCCCCCCCCC.CCCCCCCCCCCCCCCCO
Isomeric SMILES
CCCCCCCCCCCCCCCCO.CCCCCCCCCCCCCCCC(=O)OC[C@H](COP(=O)([O-])OCC[N+](C)(C)C)OC(=O)CCCCCCCCCCCCCCC.CC(C)(C)CC(C)(C)C1=CC=C(C=C1)O.C=O.C1CO1

Synonyms

  • Dipalmitoylphosphatidylcholine, hexadecanol, tyloxapol drug combination
  • dipalmitoylphosphatidylcholine-hexadecanol-tyloxapol

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
1,256.91 g/molcalc.
Exact mass
1,256.027 Dacalc.
LogP (octanol/water)
20.01calc.
Topological polar surface area
181.3 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
12calc.
Rotatable bonds
54calc.
Heavy atoms
87calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.88calc.
Formal charge
0calc.
Stereocentres
2calc.
Components
5calc.
Lipinski rule of five
Fails (3 violations)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.

Exosurf suppliers

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Exosurf 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

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Exosurf is traded under.

HS 2923.90Indicative HS code

Quaternary ammonium salts and hydroxides whether or not chemically defined not elsewhere classified…

World exports in 2024
$1.07B
+14.4% vs 2023, imports $1.16B
2019 to 2024
Top exporters
  1. China36.7%
  2. United States14.2%
  3. Netherlands9.4%
Top importers
  1. South Korea10.7%
  2. Germany10.1%
  3. United States9.9%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Exosurf, based on the data on this page

What is Exosurf?

Exosurf is a chemical substance with the molecular formula C73H142NO12P and a molar mass of 1,256.91 g/mol. Its CAS registry number is 99732-49-7. The IUPAC name is [(2R)-2,3-di(hexadecanoyloxy)propyl] 2-(trimethylazaniumyl)ethyl phosphate, formaldehyde, hexadecan-1-ol, oxirane, 4-(2,4,4-trimethylpentan-2-yl)phenol.

What is the CAS number of Exosurf?

The CAS registry number of Exosurf is 99732-49-7.

What is the molecular formula and weight of Exosurf?

The molecular formula of Exosurf is C73H142NO12P and its molar mass is 1,256.91 g/mol.

What is Exosurf used for?

Known uses and roles of Exosurf include softeners in textiles and leather and surfactants in home care and cleaning.

Is Exosurf hazardous?

No GHS hazard classification for Exosurf 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 Exosurf?

Exosurf is usually classified under HS code 292390 (Quaternary ammonium salts and hydroxides, lecithins and other phosphoaminolipids…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Exosurf?

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

What is the price of Exosurf?

Suppliers quote Exosurf 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 Exosurf

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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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