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Esters and lactones

Cyclohexanecarboxylic acid, 4-methyl-, methyl ester

Also known as Methyl 4-methylcyclohexanecarboxylate, MMCHC, 4-Methylcyclohexanecarboxylic acid methyl ester

CAS 51181-40-9Formula C9H16O2Molar mass 156.23 g/molEC 803-922-9
GHS signal word: Warning. Pictograms: Flammable, Harmful or irritant
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Cyclohexanecarboxylic acid, 4-methyl-, methyl ester chemical structure, C9H16O2, CAS 51181-40-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
51181-40-9
Formula
C9H16O2
Molar mass
156.23 g/mol
Physical form
Liquid
HS code
291620
Category
Esters and lactones
Illustrative photo, 200 litre steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Cyclohexanecarboxylic acid, 4-methyl-, methyl ester?

Plain description, key identifiers and synonyms

Cyclohexanecarboxylic acid, 4-methyl-, methyl ester is a chemical substance with the molecular formula C9H16O2 and a molar mass of 156.23 g/mol. Its CAS registry number is 51181-40-9. The IUPAC name is methyl 4-methylcyclohexane-1-carboxylate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
methyl 4-methylcyclohexane-1-carboxylate
CAS number
51181-40-9 CAS number cross-checkedOther or deprecated CAS: 41076-10-2
EC number
803-922-9
Molecular formula
C9H16O2
UNII
1678W73A68, AF768W8UFN, D64N86PC8X
InChIKey
QJMSVBUMBNELCF-UHFFFAOYSA-N
InChI
InChI=1S/C9H16O2/c1-7-3-5-8(6-4-7)9(10)11-2/h7-8H,3-6H2,1-2H3
SMILES (canonical and isomeric)
CC1CCC(CC1)C(=O)OC

Synonyms

  • Methyl 4-methylcyclohexanecarboxylate
  • MMCHC
  • 4-Methylcyclohexanecarboxylic acid methyl ester
  • methyl 4-methylcyclohexane-1-carboxylate
  • Methyl 4-methylcyclohexanecarboxylate, cis-
  • Cyclohexanecarboxylic acid, 4-methyl-, methyl ester, cis-
  • cis-methyl 4-methylcyclohexanecarboxylate
  • trans-methyl 4-methylcyclohexanecarboxylate
  • Methyl 4-methylcyclohexanecarboxylate, trans-
  • trans-4-methyl-cyclohexanecarboxylic acid. Methyl ester
  • Cyclohexanecarboxylic acid, 4-methyl-, methyl ester, trans-

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

Physical form
Liquidexp.

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
156.23 g/molcalc.
Exact mass
156.115 Dacalc.
LogP (octanol/water)
1.99calc.
Topological polar surface area
26.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
11calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.89calc.
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, C1CCCCC1

C1CCCCC1

1 ring, 6 atoms, the Cyclohexane ring system.

24,737 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H226Flammable liquid and vapour.
  • H319Causes serious eye irritation.
Precautionary statements (14)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P337 + P317If eye irritation persists: Get medical help.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • 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

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Cyclohexanecarboxylic acid, 4-methyl-, methyl ester 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

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 Cyclohexanecarboxylic acid, 4-methyl-, methyl ester is traded under.

HS 2916.20Indicative HS code

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

World exports in 2024
$489M
−6.1% vs 2023, imports $608M
2019 to 2024
Top exporters
  1. China45.5%
  2. India * partner reported18.6%
  3. Japan11.2%
Top importers
  1. Brazil20.3%
  2. United States15.7%
  3. India * partner reported12.8%

* Partner reported figures, a lower bound.

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

The HS code shown for Cyclohexanecarboxylic acid, 4-methyl-, methyl ester is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Cyclohexanecarboxylic acid, 4-methyl-, methyl ester, based on the data on this page

What is Cyclohexanecarboxylic acid, 4-methyl-, methyl ester?

Cyclohexanecarboxylic acid, 4-methyl-, methyl ester is a chemical substance with the molecular formula C9H16O2 and a molar mass of 156.23 g/mol. Its CAS registry number is 51181-40-9. The IUPAC name is methyl 4-methylcyclohexane-1-carboxylate.

What is the CAS number of Cyclohexanecarboxylic acid, 4-methyl-, methyl ester?

The CAS registry number of Cyclohexanecarboxylic acid, 4-methyl-, methyl ester is 51181-40-9. Other or deprecated CAS numbers: 41076-10-2.

What is the molecular formula and weight of Cyclohexanecarboxylic acid, 4-methyl-, methyl ester?

The molecular formula of Cyclohexanecarboxylic acid, 4-methyl-, methyl ester is C9H16O2 and its molar mass is 156.23 g/mol.

What is Cyclohexanecarboxylic acid, 4-methyl-, methyl ester used for?

Is Cyclohexanecarboxylic acid, 4-methyl-, methyl ester hazardous?

Cyclohexanecarboxylic acid, 4-methyl-, methyl ester carries the GHS signal word "Warning". Main hazards: flammable liquid and vapour, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cyclohexanecarboxylic acid, 4-methyl-, methyl ester?

Cyclohexanecarboxylic acid, 4-methyl-, methyl ester is usually classified under HS code 291620 (Cyclanic, cyclenic or cycloterpenic monocarboxylic acids, their anhydrides, halides…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cyclohexanecarboxylic acid, 4-methyl-, methyl ester?

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What is the price of Cyclohexanecarboxylic acid, 4-methyl-, methyl ester?

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Guides for buyers

Practical guides that help when you source, ship or handle Cyclohexanecarboxylic acid, 4-methyl-, methyl ester

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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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