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Impurities and reference standards

D-Malic acid

Also known as D-(+)-malic acid, (R)-malic acid, Malic acid, D-

CAS 636-61-3Formula C4H6O5Molar mass 134.09 g/molEC 211-262-2
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant 18 suppliers listed
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D-Malic acid chemical structure, C4H6O5, CAS 636-61-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
636-61-3
Formula
C4H6O5
Molar mass
134.09 g/mol
EC number
211-262-2
HS code
291819
Category
Impurities and reference standards

What is D-Malic acid?

Plain description, key identifiers and synonyms

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

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2R)-2-hydroxybutanedioic acid
CAS number
636-61-3 CAS number cross-checked
EC number
211-262-2
Molecular formula
C4H6O5
UNII
P750Y95K96
MDL number
MFCD00004245
InChIKey
BJEPYKJPYRNKOW-UWTATZPHSA-N
InChI
InChI=1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)/t2-/m1/s1
Canonical SMILES
O=C(O)CC(O)C(=O)O
Isomeric SMILES
C([C@H](C(=O)O)O)C(=O)O

Synonyms

  • D-(+)-malic acid
  • (R)-malic acid
  • Malic acid, D-
  • Malic acid D-(+)-form
  • (+)-D-malic acid
  • L(+)-Malic acid
  • Butanedioic acid, hydroxy-, (2R)-
  • (R)-2-hydroxybutanedioic acid
  • (r)-(+)-hydroxysuccinic acid
  • Malic acid, L(+)-
  • Butanedioic acid, 2-hydroxy-, (2R)-
  • 2-Hydroxy-succinic acid
  • DMalic acid
  • Malic acid, D
  • Malic acid D(+)form
  • D(+)-Malic acid
  • (R)-2-Hydroxysuccinic acid
  • (2R)-2-hydroxybutanedioic acid
  • D-malate
  • R-Malic acid
  • D-Hydroxybutanedioic acid
  • (R)-malate
  • ApfelsA currencyure
  • (+)-Malic acid
  • Ornidazole Impurity 6
Show all 36 synonyms
  • D-(+)-Apple Acid
  • (R)-Hydroxybutanedioic acid
  • (2R)-2-Hydroxysuccinic acid
  • Mali
  • (R)-(+)-2-Hydroxysuccinic acid
  • (R)-2-Hydroxysuccinicacid
  • Hydroxy-(R)-Butanedioic acid
  • D-(+)-Malic acid (Standard)
  • D-Malic acid, analytical standard
  • AAF7D69B-7713-4E35-92ED-EA50BA0FCDCE
  • D-(+)-Malic acid, unnatural form, >=97.0% (T)

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
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • 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 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • 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.
  • 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

D-Malic acid suppliers

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

All 18 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

18 suppliers in 7 countries

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D-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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 D-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 D-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 D-Malic acid, based on the data on this page

What is D-Malic acid?

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

What is the CAS number of D-Malic acid?

The CAS registry number of D-Malic acid is 636-61-3.

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

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

Is D-Malic acid hazardous?

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

What is the HS code of D-Malic acid?

D-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 D-Malic acid?

CompoundList lists 18 suppliers of D-Malic acid in China, India, United States, Canada and 3 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy D-Malic acid in India?

2 suppliers in India list D-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 D-Malic acid?

Suppliers quote D-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 D-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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