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Carboxylic acids and anhydrides

Dihydroxyfumaric acid hydrate

Also known as 2,3-Dihydroxyfumaric acid xhydrate, (E)-2,3-Dihydroxybut-2-enedioic acid, hydrate, Dihydroxyfumaric acid (hydrate)

CAS 199926-38-0Formula C4H6O7Molar mass 166.09 g/mol
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Dihydroxyfumaric acid hydrate chemical structure, C4H6O7, CAS 199926-38-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
199926-38-0
Formula
C4H6O7
Molar mass
166.09 g/mol
HS code
291719
Category
Carboxylic acids and anhydrides

What is Dihydroxyfumaric acid hydrate?

Plain description, key identifiers and synonyms

Dihydroxyfumaric acid hydrate is a chemical substance with the molecular formula C4H6O7 and a molar mass of 166.09 g/mol. Its CAS registry number is 199926-38-0. The IUPAC name is (E)-2,3-dihydroxybut-2-enedioic acid, hydrate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(E)-2,3-dihydroxybut-2-enedioic acid, hydrate
CAS number
199926-38-0 CAS number cross-checked
Molecular formula
C4H6O7
MDL number
MFCD00149286
InChIKey
DDYHTXQJGPQZGN-TYYBGVCCSA-N
InChI
InChI=1S/C4H4O6.H2O/c5-1(3(7)8)2(6)4(9)10;/h5-6H,(H,7,8)(H,9,10);1H2/b2-1+;
Canonical SMILES
O.O=C(O)C(O)=C(O)C(=O)O
Isomeric SMILES
C(=C(/C(=O)O)\O)(\C(=O)O)/O.O

Synonyms

  • 2,3-Dihydroxyfumaric acid xhydrate
  • (E)-2,3-Dihydroxybut-2-enedioic acid, hydrate
  • Dihydroxyfumaric acid (hydrate)
  • DHF
  • 2,3-Dihydroxyfumaricacidhydrate
  • (2E)-2,3-Dihydroxy-2-butenedioic Acid Hydrate (1:?)
  • Dihydroxyfumaric acid hydrate, 98%
  • Dihydroxybut-2-enedioic acid hydrate

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
166.09 g/molcalc.
Exact mass
166.0114 Dacalc.
LogP (octanol/water)
-1.34calc.
Topological polar surface area
146.6 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
2calc.
Heavy atoms
11calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
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

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.

Dihydroxyfumaric acid hydrate suppliers

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Dihydroxyfumaric acid hydrate price

Indicative price range per kg from live supplier offers

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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

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 Dihydroxyfumaric acid hydrate is traded under.

HS 2917.19Indicative HS code

Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and…

World exports in 2024
$718M
+8.1% vs 2023, imports $915M
2019 to 2024
Top exporters
  1. China46.6%
  2. United States13.7%
  3. Germany10.1%
Top importers
  1. United States16.2%
  2. Denmark11.8%
  3. Germany10.0%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Dihydroxyfumaric acid hydrate, based on the data on this page

What is Dihydroxyfumaric acid hydrate?

Dihydroxyfumaric acid hydrate is a chemical substance with the molecular formula C4H6O7 and a molar mass of 166.09 g/mol. Its CAS registry number is 199926-38-0. The IUPAC name is (E)-2,3-dihydroxybut-2-enedioic acid, hydrate.

What is the CAS number of Dihydroxyfumaric acid hydrate?

The CAS registry number of Dihydroxyfumaric acid hydrate is 199926-38-0.

What is the molecular formula and weight of Dihydroxyfumaric acid hydrate?

The molecular formula of Dihydroxyfumaric acid hydrate is C4H6O7 and its molar mass is 166.09 g/mol.

What is Dihydroxyfumaric acid hydrate used for?

Known uses and roles of Dihydroxyfumaric acid hydrate include building blocks in research and laboratory.

Is Dihydroxyfumaric acid hydrate hazardous?

No GHS hazard classification for Dihydroxyfumaric acid hydrate 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 Dihydroxyfumaric acid hydrate?

Dihydroxyfumaric acid hydrate is usually classified under HS code 291719 (Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dihydroxyfumaric acid hydrate?

Post a free request on CompoundList and suppliers of Dihydroxyfumaric acid hydrate will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Dihydroxyfumaric acid hydrate?

Suppliers quote Dihydroxyfumaric acid hydrate 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 Dihydroxyfumaric acid hydrate

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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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