CompoundList
Sign in
Screening compounds

Phenethicillin

Also known as Pheneticillin, Feneticilina, alfacilin

CAS 147-55-7Formula C17H20N2O5SMolar mass 364.42 g/molEC 205-691-4
1 supplier listed
Get quotes See the supplier
Phenethicillin chemical structure, C17H20N2O5S, CAS 147-55-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
147-55-7
Formula
C17H20N2O5S
Molar mass
364.42 g/mol
EC number
205-691-4
HS code
294110
Category
Screening compounds

What is Phenethicillin?

Plain description, key identifiers and synonyms

Phenethicillin is a penicillin in which the substituent at position 6 of the penam ring is a 2-phenoxypropanamido group. It is a penicillin and a penicillin allergen. It is a conjugate acid of a phenethicillin(1-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenoxypropanoylamino)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
CAS number
147-55-7 CAS number cross-checkedOther or deprecated CAS: 9067-77-0
EC number
205-691-4
Molecular formula
C17H20N2O5S
UNII
EFA30X554H
InChIKey
NONJJLVGHLVQQM-JHXYUMNGSA-N
InChI
InChI=1S/C17H20N2O5S/c1-9(24-10-7-5-4-6-8-10)13(20)18-11-14(21)19-12(16(22)23)17(2,3)25-15(11)19/h4-9,11-12,15H,1-3H3,(H,18,20)(H,22,23)/t9?,11-,12+,15-/m1/s1
Canonical SMILES
CC(Oc1ccccc1)C(=O)NC1C(=O)N2C1SC(C)(C)C2C(=O)O
Isomeric SMILES
CC(C(=O)N[C@H]1[C@@H]2N(C1=O)[C@H](C(S2)(C)C)C(=O)O)OC3=CC=CC=C3

Synonyms

  • Pheneticillin
  • Feneticilina
  • alfacilin
  • Pheneticilline
  • Phenethicilin
  • Pheneticillinum
  • Feneticillina
  • Synthepen
  • Phenethicillinum
  • penicillin B
  • 6beta-(2-phenoxypropanamido)-2,2-dimethylpenam-3alpha-carboxylic acid
  • 3,3-dimethyl-7-oxo-6-(2-phenoxypropionamido)-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate
  • (2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-(phenoxy)propanoylamino)-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid
  • (2S,5R,6R)-3,3-dimethyl-7-oxo-6-[2-(phenoxy)propanoylamino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • penicillin, phenoxyethyl
  • alpha-phenoxyethylpenicillin
  • Feneticillin
  • Phenoxyethylpenicillin
  • Phenoxy PC
  • 1-Phenoxyethylpenicillin
  • Broxil
  • PEPC
  • (2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenoxypropanoylamino)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • (2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenoxypropanoyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • Pheneticillin (INN)
Show all 28 synonyms
  • (2S,5R,6R)-3,3-Dimethyl-7-oxo-6-(2-phenoxypropanamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • Pheneticillin Impurity 1
  • DivK1c_000234

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
364.42 g/molcalc.
Exact mass
364.1093 Dacalc.
LogP (octanol/water)
1.09calc.
Topological polar surface area
95.94 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
5calc.
Heavy atoms
25calc.
Rings
3calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.47calc.
Formal charge
0calc.
Stereocentres
4calc.
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, O=C(COc1ccccc1)NC1C(=O)N2CCSC12

O=C(COc1ccccc1)NC1C(=O)N2CCSC12

3 rings, 19 atoms.

45 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.

Phenethicillin suppliers

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

See the supplier

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

1 supplier in 1 country

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Phenethicillin 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.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Anti-Bacterial Agents

Roles

  • antibacterial agent
  • antimicrobial agent

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 Phenethicillin is traded under.

HS 2941.10Indicative HS code

Penicillins and their derivatives with a penicillanic acid structure, salts thereof

World exports in 2024
$1.66B
−2.5% vs 2023, imports $1.63B
2019 to 2024
Top exporters
  1. China56.8%
  2. Spain13.1%
  3. India * partner reported7.7%
Top importers
  1. India * partner reported16.4%
  2. Austria9.3%
  3. Brazil5.4%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Phenethicillin?

Phenethicillin is a penicillin in which the substituent at position 6 of the penam ring is a 2-phenoxypropanamido group. It is a penicillin and a penicillin allergen. It is a conjugate acid of a phenethicillin(1-).

What is the CAS number of Phenethicillin?

The CAS registry number of Phenethicillin is 147-55-7. Other or deprecated CAS numbers: 9067-77-0.

What is the molecular formula and weight of Phenethicillin?

The molecular formula of Phenethicillin is C17H20N2O5S and its molar mass is 364.42 g/mol.

What is Phenethicillin used for?

Known uses and roles of Phenethicillin include building blocks in research and laboratory, screening compounds in research and laboratory, antibacterial agent, antimicrobial agent and anti-bacterial agents.

Is Phenethicillin hazardous?

No GHS hazard classification for Phenethicillin 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 Phenethicillin?

Phenethicillin is usually classified under HS code 294110 (Penicillins and their derivatives with a penicillanic acid structure, salts thereof). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Phenethicillin?

CompoundList lists 1 supplier of Phenethicillin in United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Phenethicillin?

Suppliers quote Phenethicillin 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 Phenethicillin

Get quotes for Phenethicillin

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Phenethicillin
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Phenethicillin with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/phenethicillin-147-55-7" title="Phenethicillin structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Screening compounds or HS code 294110

1 supplier
Free quotes, contact stays private
Get quotes