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Aromatic building blocks

Mapa

Also known as methyl 3-oxo-2-phenylbutanoate, methyl alpha-acetylphenylacetate, Methyl 2-phenylacetoacetate

CAS 16648-44-5Formula C11H12O3Molar mass 192.21 g/mol
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Mapa chemical structure, C11H12O3, CAS 16648-44-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
16648-44-5
Formula
C11H12O3
Molar mass
192.21 g/mol
HS code
291830
Category
Aromatic building blocks

What is Mapa?

Plain description, key identifiers and synonyms

Mapa is a chemical substance with the molecular formula C11H12O3 and a molar mass of 192.21 g/mol. Its CAS registry number is 16648-44-5. The IUPAC name is methyl 3-oxo-2-phenylbutanoate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
methyl 3-oxo-2-phenylbutanoate
CAS number
16648-44-5
Molecular formula
C11H12O3
UNII
2TG7ZF9DBT
MDL number
MFCD21881652
InChIKey
CYSACHQWYQYLIG-UHFFFAOYSA-N
InChI
InChI=1S/C11H12O3/c1-8(12)10(11(13)14-2)9-6-4-3-5-7-9/h3-7,10H,1-2H3
SMILES (canonical and isomeric)
CC(=O)C(C1=CC=CC=C1)C(=O)OC

Synonyms

  • methyl 3-oxo-2-phenylbutanoate
  • methyl alpha-acetylphenylacetate
  • Methyl 2-phenylacetoacetate
  • Benzeneacetic acid, a-acetyl-, methyl ester
  • methyl alpha-phenylacetoacetate
  • Benzeneacetic acid, alpha-acetyl-, methyl ester
  • methyl 3-oxo-2-phenyl-butanoate
  • Methyl a-phenylacetoacetate (MAPA)

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
192.21 g/molcalc.
Exact mass
192.0786 Dacalc.
LogP (octanol/water)
1.53calc.
Topological polar surface area
43.37 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
14calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.27calc.
Formal charge
0calc.
Stereocentres
1calc.
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 Benzene ring system.

485,677 other chemicals share this scaffold

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.

Mapa suppliers

Controlled substance, listings of documented suppliers only, in the documented ranking

Drug precursor

Mapa is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Methyl alpha-phenylacetoacetate (MAPA)

Reference: UN 1988 Convention, Table I

Our policy on controlled substances
No documented supplier lists it yet

Licensed buyers can post a request for Mapa with their licence. Our compliance team reviews it before suppliers see it.

Request as a licensed buyer

Mapa 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

Regulatory status

Inventories, regulations and trade controls that list this substance

Drug precursor

Mapa is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Methyl alpha-phenylacetoacetate (MAPA)

Reference: UN 1988 Convention, Table I

Our policy on controlled substances

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Mapa is traded under.

HS 2918.30Indicative HS code

Carboxylic acids with aldehyde or ketone function but without other oxygen function…

World exports in 2024
$813M
−39.8% vs 2023, imports $1.23B
2019 to 2024
Top exporters
  1. China43.3%
  2. India * partner reported10.4%
  3. United States6.8%
Top importers
  1. Singapore33.1%
  2. Germany7.2%
  3. Japan6.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Mapa, based on the data on this page

What is Mapa?

Mapa is a chemical substance with the molecular formula C11H12O3 and a molar mass of 192.21 g/mol. Its CAS registry number is 16648-44-5. The IUPAC name is methyl 3-oxo-2-phenylbutanoate.

What is the CAS number of Mapa?

The CAS registry number of Mapa is 16648-44-5.

What is the molecular formula and weight of Mapa?

The molecular formula of Mapa is C11H12O3 and its molar mass is 192.21 g/mol.

What is Mapa used for?

Known uses and roles of Mapa include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Mapa hazardous?

No GHS hazard classification for Mapa 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 Mapa?

Mapa is usually classified under HS code 291830 (Carboxylic acids with aldehyde or ketone function but without other oxygen function…). This is indicative, confirm it with your customs broker before shipping.

Can I buy Mapa on CompoundList?

Mapa is a controlled substance. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed by our compliance team before suppliers see it.

Guides for buyers

Practical guides that help when you source, ship or handle Mapa

Request as a licensed buyer

Upload your licence with the request. Our compliance team reviews it before the documented suppliers see it.
Request as a licensed buyer
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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