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Padimate-O

Also known as 2-ethylhexyl-p-dimethylaminobenzoate, 4-N,N'-dimethylamino-benzoic acid, 2-ethylhexyl ester, 2-Ethylhexyl 4-(dimethylamino)benzoate

CAS 21245-02-3Formula C17H27NO2Molar mass 277.41 g/molEC 244-289-3
GHS signal word: Danger. Pictograms: Harmful or irritant, Serious health hazard 26 suppliers listed
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Padimate-O chemical structure, C17H27NO2, CAS 21245-02-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Light yellow, mobile liquid
Boiling point
325 °C
Density
0.995 g/cm³ at 25 °C
Solubility
Soluble in alcohol, isopropyl alcohol, mineral oil, practically insoluble in water, glyc…
HS code
292249
Category
UV filters
Illustrative photo, pale yellow liquid in laboratory glassware on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Padimate-O?

Plain description, key identifiers and synonyms

Padimate O is a benzoate ester.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-ethylhexyl 4-(dimethylamino)benzoate
CAS number
21245-02-3 CAS number cross-checkedOther or deprecated CAS: 212545-02-3
EC number
244-289-3
Molecular formula
C17H27NO2
UNII
Z11006CMUZ
MDL number
MFCD00017526
INCI name
ETHYLHEXYL DIMETHYL PABA
InChIKey
WYWZRNAHINYAEF-UHFFFAOYSA-N
InChI
InChI=1S/C17H27NO2/c1-5-7-8-14(6-2)13-20-17(19)15-9-11-16(12-10-15)18(3)4/h9-12,14H,5-8,13H2,1-4H3
SMILES (canonical and isomeric)
CCCCC(CC)COC(=O)C1=CC=C(C=C1)N(C)C

Synonyms

  • 2-ethylhexyl-p-dimethylaminobenzoate
  • 4-N,N'-dimethylamino-benzoic acid, 2-ethylhexyl ester
  • 2-Ethylhexyl 4-(dimethylamino)benzoate
  • Padimate O
  • 2-Ethylhexyl 4-dimethylaminobenzoate
  • Octyl dimethyl PABA
  • Escalol 507
  • Eusolex 6007
  • Arlatone UVB
  • 4-(Dimethylamino)benzoic acid 2-ethylhexyl ester
  • Benzoic acid, 4-(dimethylamino)-, 2-ethylhexyl ester
  • 2-Ethylhexyl p-dimethylaminobenzoate
  • Uvasorb dmo
  • 2-Ethylhexyl-4-dimethylaminobenzoate
  • 2-Ethylhexyl p-(dimethylamino)benzoate
  • Ethylhexyl dimethyl paba
  • 2-Ethylhexyl-p-dimethyl-aminobenzoate
  • Radiacare Lip Balm
  • Octyl dimethyl p-aminobenzoate
  • Caraloe Snow & Sun Lip Balm
  • Pamimate o
  • Padimate O (USP)
  • Arlatone UVB (TN)
  • Photoplex (Salt/Mix)
  • PreSun 23 (Salt/Mix)
Show all 28 synonyms
  • 4-(Dimethylamino)benzoic acid, 2-ethylhexyl ester
  • (+/-)-Padimate o
  • Benzoic acid, p-(dimethylamino)-, 2-ethylhexyl ester

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

Appearance
Light yellow, mobile liquidexp.
Boiling point
325 °Cexp.
Density
0.995 g/cm³ at 25 °Cexp.
Solubility
Soluble in alcohol, isopropyl alcohol, mineral oil, practically insoluble in water, glycerin, propylene glycolexp.

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
277.41 g/molcalc.
Exact mass
277.2042 Dacalc.
LogP (octanol/water)
4.13calc.
Topological polar surface area
29.54 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
8calc.
Heavy atoms
20calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.59calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H360FMay damage fertility.
Precautionary statements (18)
  • P203Obtain, read and follow all safety instructions before use.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • 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

Padimate-O suppliers

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

All 26 suppliers
26 of 26 offers

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

26 suppliers in 4 countries

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Padimate-O 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

Used as an ultraviolet absorber in US cosmetics at concentrations of 1.4-8%.

Used as a synergistic agent-photoinitiator for UV-curable inks.

Therapeutic category: Esters as ultraviolet screen.

Industrial uses: Tanning agents not otherwise specified.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name ETHYLHEXYL DIMETHYL PABA(light stabilizer, uv absorber, uv filter)

Pharmacological actions

  • Sunscreening Agents

Functional uses

  • Chemical reaction regulator
  • Photosensitizers
  • UV stabilizer

Cosmetic functions

  • Light stabilizer
  • UV absorber
  • UV filter

How it is made

By the esterification of p-dimethylaminobenzoic acid with 2-ethylhexanol in the presence of dry HCl. The product is liberated from the salt by neutralization with base.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex VI, allowed UV filter
    Name: ETHYLHEXYL DIMETHYL PABA, Ref no: 21, Annex ref: VI/21

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Padimate-O is traded under.

HS 2922.49Indicative HS code

Amino-acids, other than those containing more than one kind of oxygen function, and…

World exports in 2024
$3.88B
−11.5% vs 2023, imports $3.87B
2019 to 2024
Top exporters
  1. China38.7%
  2. India * partner reported8.3%
  3. Germany8.1%
Top importers
  1. United States13.4%
  2. Germany11.1%
  3. Japan6.6%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Padimate-O, based on the data on this page

What is Padimate-O?

Padimate O is a benzoate ester.

What is the CAS number of Padimate-O?

The CAS registry number of Padimate-O is 21245-02-3. Other or deprecated CAS numbers: 212545-02-3.

What is the molecular formula and weight of Padimate-O?

The molecular formula of Padimate-O is C17H27NO2 and its molar mass is 277.41 g/mol.

What is Padimate-O used for?

Used as an ultraviolet absorber in US cosmetics at concentrations of 1.4-8%. Used as a synergistic agent-photoinitiator for UV-curable inks. Therapeutic category: Esters as ultraviolet screen. Industrial uses: Tanning agents not otherwise specified. Use classes: Cosmetics.

Is Padimate-O hazardous?

Padimate-O carries the GHS signal word "Danger". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Padimate-O?

Padimate-O is usually classified under HS code 292249 (Amino-acids, other than those containing more than one kind of oxygen function, and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Padimate-O?

CompoundList lists 26 suppliers of Padimate-O in China, United States, India and Taiwan. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Padimate-O in India?

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

What is the price of Padimate-O?

Suppliers quote Padimate-O 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 Padimate-O

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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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