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Fluorescent dyes and stains

Dotap

Also known as 1,2-Dotap, 1,2-Dioleoyloxy-3-(trimethylammonium)propane, 1,2-dioleoyl-3-trimethylammoniumpropane

CAS 113669-21-9Formula C42H80NO4+Molar mass 663.11 g/mol
1 supplier listed
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Dotap chemical structure, C42H80NO4+, CAS 113669-21-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
113669-21-9
Formula
C42H80NO4+
Molar mass
663.11 g/mol
HS code
292390
Category
Fluorescent dyes and stains

What is Dotap?

Plain description, key identifiers and synonyms

Dotap is a chemical substance with the molecular formula C42H80NO4+ and a molar mass of 663.11 g/mol. Its CAS registry number is 113669-21-9. The IUPAC name is 2,3-bis[[(Z)-octadec-9-enoyl]oxy]propyl-trimethylazanium.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2,3-bis[[(Z)-octadec-9-enoyl]oxy]propyl-trimethylazanium
CAS number
113669-21-9 CAS number cross-checked
Molecular formula
C42H80NO4+
UNII
MR86K0XRQP
InChIKey
KWVJHCQQUFDPLU-YEUCEMRASA-N
InChI
InChI=1S/C42H80NO4/c1-6-8-10-12-14-16-18-20-22-24-26-28-30-32-34-36-41(44)46-39-40(38-43(3,4)5)47-42(45)37-35-33-31-29-27-25-23-21-19-17-15-13-11-9-7-2/h20-23,40H,6-19,24-39H2,1-5H3/q+1/b22-20-,23-21-
Canonical SMILES
CCCCCCCCC=CCCCCCCCC(=O)OCC(C[N+](C)(C)C)OC(=O)CCCCCCCC=CCCCCCCCC
Isomeric SMILES
CCCCCCCC/C=C\CCCCCCCC(=O)OCC(C[N+](C)(C)C)OC(=O)CCCCCCC/C=C\CCCCCCCC

Synonyms

  • 1,2-Dotap
  • 1,2-Dioleoyloxy-3-(trimethylammonium)propane
  • 1,2-dioleoyl-3-trimethylammoniumpropane
  • 1,2-dioleoyl-3-trimethylpropanammonium
  • N,N,N-Trimethyl-2,3-bis(oleoyloxy)propan-1-aminium
  • 18:1 TAP (DOTAP, MS Salt)
  • 2,3-bis[[(Z)-octadec-9-enoyl]oxy]propyl-trimethylazanium
  • N-(1-(2,3-Dioleoyloxy)propyl)-N,N,N-trimethylammonium methylsulfate
  • N,N,N-Trimethyl-2,3-bis((-1-oxo-octadecenyl)oxy)-(Z,Z)-1-propanaminium
  • DOTAP, (+/-)-
  • 1,2-Dioleoyl-3-trimethylammonium propane
  • 1-Propanaminium, N,N,N-trimethyl-2,3-bis(((9Z)-1-oxo-9-octadecen-1-yl)oxy)-
  • 1-Propanaminium, N,N,N-trimethyl-2,3-bis(((9Z)-1-oxo-9-octadecenyl)oxy)-
  • 1-Propanaminium, N,N,N-trimethyl-2,3-bis((1-oxo-9-octadecenyl)oxy)-, (Z,Z)-
  • N,N,N-Trimethyl-2,3-bis[[(9Z)-1-oxo-9-octadecen-1-yl]oxy]-1-propanaminium

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
663.11 g/molcalc.
Exact mass
662.6082 Dacalc.
LogP (octanol/water)
12.22calc.
Topological polar surface area
52.6 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
35calc.
Heavy atoms
47calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.86calc.
Formal charge
1calc.
Stereocentres
1calc.
Lipinski rule of five
Fails (2 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.

Dotap suppliers

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  • BroadPharm
    United States, San DiegoUnclaimed profile
    DotapGrade, purity and minimum order on request
    Price on request
    View

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Where suppliers are based

1 supplier in 1 country

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Dotap 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.

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Fluorescent Dyes

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 Dotap 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 Dotap is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Dotap?

Dotap is a chemical substance with the molecular formula C42H80NO4+ and a molar mass of 663.11 g/mol. Its CAS registry number is 113669-21-9. The IUPAC name is 2,3-bis[[(Z)-octadec-9-enoyl]oxy]propyl-trimethylazanium.

What is the CAS number of Dotap?

The CAS registry number of Dotap is 113669-21-9.

What is the molecular formula and weight of Dotap?

The molecular formula of Dotap is C42H80NO4+ and its molar mass is 663.11 g/mol.

What is Dotap used for?

Known uses and roles of Dotap include fluorescent dyes.

Is Dotap hazardous?

No GHS hazard classification for Dotap 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 Dotap?

Dotap 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 Dotap?

CompoundList lists 1 supplier of Dotap in United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dotap?

Suppliers quote Dotap 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 Dotap

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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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