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Carboxylic acids and anhydrides

Feist'S acid

Also known as 3-Methylenecyclopropane-trans-1,2-dicarboxylic acid, 1,2-Cyclopropanedicarboxylic acid, 3-methylene-, trans-, 3-Methylene-cyclopropane-1,2-dicarboxylic acid

CAS 75880-66-9Formula C6H6O4Molar mass 142.11 g/molEC 123-662-3
GHS signal word: Warning. Pictograms: Harmful or irritant
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Feist'S acid chemical structure, C6H6O4, CAS 75880-66-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
75880-66-9
Formula
C6H6O4
Molar mass
142.11 g/mol
EC number
123-662-3
HS code
291720
Category
Carboxylic acids and anhydrides

What is Feist'S acid?

Plain description, key identifiers and synonyms

Feist'S acid is a chemical substance with the molecular formula C6H6O4 and a molar mass of 142.11 g/mol. Its CAS registry number is 75880-66-9. The IUPAC name is trans-(1R,2R)-3-methylidenecyclopropane-1,2-dicarboxylic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
trans-(1R,2R)-3-methylidenecyclopropane-1,2-dicarboxylic acid
CAS number
75880-66-9Other or deprecated CAS: 499-02-5
EC number
123-662-3
Molecular formula
C6H6O4
InChIKey
XZVHROKAQFFOCA-IMJSIDKUSA-N
InChI
InChI=1S/C6H6O4/c1-2-3(5(7)8)4(2)6(9)10/h3-4H,1H2,(H,7,8)(H,9,10)/t3-,4-/m0/s1
Canonical SMILES
C=C1C(C(=O)O)C1C(=O)O
Isomeric SMILES
C=C1[C@@H]([C@H]1C(=O)O)C(=O)O

Synonyms

  • 3-Methylenecyclopropane-trans-1,2-dicarboxylic acid
  • 1,2-Cyclopropanedicarboxylic acid, 3-methylene-, trans-
  • 3-Methylene-cyclopropane-1,2-dicarboxylic acid
  • trans-1-Methylene cyclopropane-2,3-dicarboxylic acid
  • 3-Methylenecyclopropane-1,2-dicarboxylic acid, trans-
  • dl-3-Methylenecyclopropane-trans-1,2-dicarboxylic acid
  • rac-(1r,2r)-3-methylidenecyclopropane-1,2-dicarboxylic acid
  • (1R,2R)-3-methylenecyclopropane-1,2-dicarboxylic acid
  • (1R,2R)-3-methylidenecyclopropane-1,2-dicarboxylic acid
  • (1R,2R)-3-methylene-1,2-cyclopropanedicarboxylic acid
  • 3-Methylene-1,2-cyclopropanedicarboxylic acid #
  • 1-Methylen-cyclopropan-trans-2,3-dicarbonsA currencyure

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
142.11 g/molcalc.
Exact mass
142.0266 Dacalc.
LogP (octanol/water)
-0.04calc.
Topological polar surface area
74.6 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
10calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.33calc.
Formal charge
0calc.
Stereocentres
2calc.
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, C=C1CC1

C=C1CC1

1 ring, 4 atoms, the Methylenecyclopropane ring system.

205 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

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • 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).
  • P330Rinse mouth.
  • 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

Feist'S acid suppliers

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Feist'S acid price

Indicative price range per kg from live supplier offers

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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 Feist'S acid is traded under.

HS 2917.20Indicative HS code

Cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides…

World exports in 2024
$338M
+10.9% vs 2023, imports $464M
2019 to 2024
Top exporters
  1. China37.1%
  2. United States16.2%
  3. Italy15.5%
Top importers
  1. India * partner reported11.6%
  2. China9.4%
  3. Germany8.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Feist'S acid, based on the data on this page

What is Feist'S acid?

Feist'S acid is a chemical substance with the molecular formula C6H6O4 and a molar mass of 142.11 g/mol. Its CAS registry number is 75880-66-9. The IUPAC name is trans-(1R,2R)-3-methylidenecyclopropane-1,2-dicarboxylic acid.

What is the CAS number of Feist'S acid?

The CAS registry number of Feist'S acid is 75880-66-9. Other or deprecated CAS numbers: 499-02-5.

What is the molecular formula and weight of Feist'S acid?

The molecular formula of Feist'S acid is C6H6O4 and its molar mass is 142.11 g/mol.

What is Feist'S acid used for?

Known uses and roles of Feist'S acid include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Feist'S acid hazardous?

Feist'S acid carries the GHS signal word "Warning". Main hazards: harmful if swallowed, 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 Feist'S acid?

Feist'S acid is usually classified under HS code 291720 (Cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Feist'S acid?

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What is the price of Feist'S acid?

Suppliers quote Feist'S 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 Feist'S 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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