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Cosmetic colorants and hair dyes

Sesamol

Also known as 1,3-Benzodioxol-5-ol, 5-Hydroxy-1,3-benzodioxole, 3,4-Methylenedioxyphenol

CAS 533-31-3Formula C7H6O3Molar mass 138.12 g/molEC 208-561-5
GHS signal word: Warning. Pictograms: Harmful or irritant 65 suppliers listed
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Sesamol chemical structure, C7H6O3, CAS 533-31-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
533-31-3
Formula
C7H6O3
Appearance
Crystals from chloroform/petroleum ether
Melting point
64.9 °C
HS code
293299
Category
Cosmetic colorants and hair dyes
Illustrative photo, 25 kg white woven sacks of powder on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Sesamol?

Plain description, key identifiers and synonyms

Sesamol is a member of benzodioxoles.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1,3-benzodioxol-5-ol
CAS number
533-31-3 CAS number cross-checked
EC number
208-561-5
Molecular formula
C7H6O3
UNII
94IEA0NV89
MDL number
MFCD00005827
INCI name
3,4-METHYLENEDIOXYPHENOL
InChIKey
LUSZGTFNYDARNI-UHFFFAOYSA-N
InChI
InChI=1S/C7H6O3/c8-5-1-2-6-7(3-5)10-4-9-6/h1-3,8H,4H2
SMILES (canonical and isomeric)
C1OC2=C(O1)C=C(C=C2)O

Synonyms

  • 1,3-Benzodioxol-5-ol
  • 5-Hydroxy-1,3-benzodioxole
  • 3,4-Methylenedioxyphenol
  • 2H-1,3-Benzodioxol-5-Ol
  • Methylene ether of oxyhydroquinone
  • Phenol, 3,4-(methylenedioxy)-
  • 3,4-(Methylenedioxy)phenol
  • benzo[d][1,3]dioxol-5-ol
  • 3,4-Methylendioxyphenol
  • sesamol sodium
  • 5-Benzodioxolol
  • (3,4-methylenedioxy)phenol
  • Sdccgmls-0066221.p001
  • 2H-benzo[d]1,3-dioxolen-5-ol
  • sesamol lithium
  • 1,3-Benzodioxol-5-ol (Sesamol)
  • sesamol, ion (1+)
  • sesamol titanium (+4)
  • benzodioxol-5-ol
  • BZX
  • 1,2,4-Benzenetriol methylene ether
  • Sesamol (Standard)
  • 3,4-Methylenedioxyph
  • Oristar mdp
  • Sesamol, 98%
Show all 38 synonyms
  • 3ao1
  • 1,3-dioxaindan-5-ol
  • 4,5-methylenedioxyphenol
  • 3,4-methylendioxy-phenol
  • benzo[1,3]dioxol-5-ol
  • 3,4-methylenedioxy phenol
  • 3,4-methylenedioxy-phenol
  • 1, 3-Benzodioxol-5-ol
  • 3,4 Methylenedioxy Phenol
  • Sesamol, analytical standard
  • Phenol,4-(methylenedioxy)-
  • 5-Hydroxybenzo[1,3]dioxole
  • 5-19-02-00532 (Beilstein Handbook Reference)

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
Crystals from chloroform/petroleum etherexp.
Melting point
64.9 °Cexp.

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
138.12 g/molcalc.
Exact mass
138.0317 Dacalc.
LogP (octanol/water)
1.12calc.
Topological polar surface area
38.69 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
10calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.14calc.
Formal charge
0calc.
Stereocentres
0calc.
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, c1ccc2c(c1)OCO2

c1ccc2c(c1)OCO2

2 rings, 9 atoms, the 1,3-Benzodioxole ring system.

4,560 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • 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.
  • 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

Sesamol suppliers

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

All 65 suppliers
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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

65 suppliers in 11 countries

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Sesamol 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

Use classes: Cosmetics.

Cosmetic ingredient, INCI name 3,4-METHYLENEDIOXYPHENOL(hair dyeing)

Pharmacological actions

  • Antioxidants

Functional uses

  • Dye
  • Flavouring and nutrient

Cosmetic functions

  • Hair dyeing

How it is made

Sesamol, generally regarded as the main antioxidative component in sesame oil, can be generated from sesamolin by roasting sesame seed or bleaching sesame oil ...

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: 3,4-Methylenedioxyphenol and its salts, when used as a substance in hair dye products, Ref no: 1247, Annex ref: II/1247

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 Sesamol is traded under.

HS 2932.99Indicative HS code

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

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Sesamol?

Sesamol is a member of benzodioxoles.

What is the CAS number of Sesamol?

The CAS registry number of Sesamol is 533-31-3.

What is the molecular formula and weight of Sesamol?

The molecular formula of Sesamol is C7H6O3 and its molar mass is 138.12 g/mol.

What is Sesamol used for?

Use classes: Cosmetics.

Is Sesamol hazardous?

Sesamol carries the GHS signal word "Warning". 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 Sesamol?

Sesamol is usually classified under HS code 293299 (Heterocyclic compounds with oxygen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Sesamol?

CompoundList lists 65 suppliers of Sesamol in China, United States, India, Germany and 7 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Sesamol in India?

6 suppliers in India list Sesamol on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Sesamol?

Suppliers quote Sesamol 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 Sesamol

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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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