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Cosmetic ingredients

L-Malic acid

Also known as (2S)-2-Hydroxybutanedioic acid, (-)-Malic acid, (-)-Hydroxysuccinic acid

CAS 97-67-6Formula C4H6O5Molar mass 134.09 g/molEC 202-601-5
GHS signal word: Warning. Pictograms: Harmful or irritant 61 suppliers listed
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L-Malic acid chemical structure, C4H6O5, CAS 97-67-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
97-67-6
Formula
C4H6O5
Molar mass
134.09 g/mol
EC number
202-601-5
HS code
291819
Category
Cosmetic ingredients

What is L-Malic acid?

Plain description, key identifiers and synonyms

(S)-malic acid is an optically active form of malic acid having (S)-configuration. It has a role as a geroprotector. It is a conjugate acid of a (S)-malate(2-). It is an enantiomer of a (R)-malic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S)-2-hydroxybutanedioic acid
CAS number
97-67-6 CAS number cross-checkedOther or deprecated CAS: 26999-59-7, 6915-15-7
EC number
202-601-5
Molecular formula
C4H6O5
UNII
J3TZF807X5
MDL number
MFCD00064213
INCI name
MALIC ACID
InChIKey
BJEPYKJPYRNKOW-REOHCLBHSA-N
InChI
InChI=1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)/t2-/m0/s1
Canonical SMILES
O=C(O)CC(O)C(=O)O
Isomeric SMILES
C([C@@H](C(=O)O)O)C(=O)O

Synonyms

  • (2S)-2-Hydroxybutanedioic acid
  • (-)-Malic acid
  • (-)-Hydroxysuccinic acid
  • S-(-)-Malic acid
  • Malic acid, L-
  • Malic acid L-(-)-form
  • Hydroxysuccinnic acid (-)
  • Butanedioic acid, 2-hydroxy-, (2S)-
  • Hydroxybutanedioic acid, (S)-
  • 2-Hydroxybutanedioic acid, (S)-
  • MALIC ACID, L-(II)
  • (-)-Hydroxybutanedioic Acid
  • hydron, (2S)-2-hydroxybutanedioate
  • L-(-)-Malic acid
  • (S)-2-hydroxysuccinic acid
  • (S)-Malic acid
  • L(-)-Malic acid
  • L-Apple acid
  • L-Hydroxybutanedioic acid
  • Apple acid
  • S-2-Hydroxybutanedioic acid
  • (-)-L-Malic acid
  • Butanedioic acid, hydroxy-, (2S)-
  • L-2-Hydroxybutanedioic acid
  • (S)-malate
Show all 34 synonyms
  • L-Hydroxysuccinic acid
  • (S)-(-)-Hydroxysuccinic acid
  • (S)-(-)-2-Hydroxysuccinic acid
  • L-(-)-Apple Acid
  • (S)-Hydroxybutanedioic acid
  • (-)-(S)-Malic acid
  • Hydroxybutanedioic acid, (-)-
  • L(-)MALIC ACID
  • (2s)-2-hydroxysuccinic acid

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
134.09 g/molcalc.
Exact mass
134.0215 Dacalc.
LogP (octanol/water)
-1.09calc.
Topological polar surface area
94.83 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
9calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

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.
Precautionary statements (9)
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • 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.

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

L-Malic acid suppliers

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

All 61 suppliers
30 of 30 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

61 suppliers in 11 countries

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L-Malic acid 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 MALIC ACID(buffering)

Roles

  • geroprotector
  • pharmaceutical
  • protective agent

Functional uses

  • Biocide
  • Flavouring and nutrient
  • pH regulating agent

Cosmetic functions

  • Buffering

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

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 L-Malic acid is traded under.

HS 2918.19Indicative HS code

Carboxylic acids with alcohol function but without other oxygen function, their…

World exports in 2024
$1.37B
+0.5% vs 2023, imports $1.18B
2019 to 2024
Top exporters
  1. China23.7%
  2. Italy14.7%
  3. India * partner reported12.0%
Top importers
  1. Germany11.7%
  2. South Korea9.8%
  3. Italy9.6%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about L-Malic acid, based on the data on this page

What is L-Malic acid?

(S)-malic acid is an optically active form of malic acid having (S)-configuration. It has a role as a geroprotector. It is a conjugate acid of a (S)-malate(2-). It is an enantiomer of a (R)-malic acid.

What is the CAS number of L-Malic acid?

The CAS registry number of L-Malic acid is 97-67-6. Other or deprecated CAS numbers: 26999-59-7, 6915-15-7.

What is the molecular formula and weight of L-Malic acid?

The molecular formula of L-Malic acid is C4H6O5 and its molar mass is 134.09 g/mol.

What is L-Malic acid used for?

Use classes: Cosmetics.

Is L-Malic acid hazardous?

L-Malic acid carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of L-Malic acid?

L-Malic acid is usually classified under HS code 291819 (Carboxylic acids with alcohol function but without other oxygen function, their…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy L-Malic acid?

CompoundList lists 61 suppliers of L-Malic acid in China, United States, Italy, South Africa 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 L-Malic acid in India?

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

What is the price of L-Malic acid?

Suppliers quote L-Malic acid 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 L-Malic acid

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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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