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Antibiotics and anti-infectives

Carbenicillin

Also known as Carboxybenzylpenicillin, Carbenicilina, Carbenicilline

CAS 4697-36-3Formula C17H18N2O6SMolar mass 378.41 g/molEC 225-171-0
GHS signal word: Danger. Pictograms: Serious health hazard 28 suppliers listed
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Carbenicillin chemical structure, C17H18N2O6S, CAS 4697-36-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
4697-36-3
Formula
C17H18N2O6S
Molar mass
378.41 g/mol
Solubility
WHITE TO OFF-WHITE, CRYSTALLINE POWDER, BITTER TASTE, HYGROSCOPIC, ODORLESS, PKA1: 2.76,…
HS code
294110
Category
Antibiotics and anti-infectives

What is Carbenicillin?

Plain description, key identifiers and synonyms

Carbenicillin is a penicillin antibiotic having a 6beta-2-carboxy-2-phenylacetamido side-chain. It has a role as an antibacterial drug. It is a penicillin and a penicillin allergen. It is a conjugate acid of a carbenicillin(2-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S,5R,6R)-6-[(2-carboxy-2-phenylacetyl)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
CAS number
4697-36-3 CAS number cross-checked
EC numbers
225-171-0, 434-340-1
Molecular formula
C17H18N2O6S
UNII
G42ZU72N5G
InChIKey
FPPNZSSZRUTDAP-UWFZAAFLSA-N
InChI
InChI=1S/C17H18N2O6S/c1-17(2)11(16(24)25)19-13(21)10(14(19)26-17)18-12(20)9(15(22)23)8-6-4-3-5-7-8/h3-7,9-11,14H,1-2H3,(H,18,20)(H,22,23)(H,24,25)/t9?,10-,11+,14-/m1/s1
Canonical SMILES
CC1(C)SC2C(NC(=O)C(C(=O)O)c3ccccc3)C(=O)N2C1C(=O)O
Isomeric SMILES
CC1([C@@H](N2[C@H](S1)[C@@H](C2=O)NC(=O)C(C3=CC=CC=C3)C(=O)O)C(=O)O)C

Synonyms

  • Carboxybenzylpenicillin
  • Carbenicilina
  • Carbenicilline
  • alpha-Carboxybenzylpencillin
  • Carbenicillinum
  • Carbenicillina
  • CBPC
  • alpha-Phenyl(carboxymethylpenicillin)
  • 6-(alpha-Carboxyphenylacetamido)penicillanic acid
  • (2S,5R,6R)-6-[(2-carboxy-2-phenylacetyl)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • (2S,5R,6R)-6-(2-carboxy-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • N-(2-Carboxy-3,3-dimethyl-7-oxo-4-thia-azabicyclo(3.2.0)hept-6-yl)-2-phenylmalonamic acid
  • Malonamic acid, N-(2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)hept-6-yl)-2-phenyl-
  • N-(2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)hept-6-yl)-2-phenylmalonamic acid
  • 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-((carboxyphenylacetyl)amino)-3,3-dimethyl-7-oxo-, (2S-(2alpha,5alpha,6beta))-
  • (2S,5R,6R)-6-{[carboxy(phenyl)acetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • Carboxybenzyl Penicillin
  • (2S,5R,6R)-6-((2-carboxy-2-phenylacetyl)amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid
  • (2S,5R,6R)-6-((carboxy(phenyl)acetyl)amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid
  • (2S,5R,6R)-6-(2-carboxy-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid
  • Penicillin, Carboxybenzyl
  • Carboxybenzylpenicillin acid
  • Pyopen
  • Carbenicillin (INN)
  • Carbenicillin (disodium)
Show all 27 synonyms
  • (2S,5R,6R)-6-[(3-hydroxy-3-oxo-2-phenyl-propanoyl)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • DivK1c_000735

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

Solubility
WHITE TO OFF-WHITE, CRYSTALLINE POWDER, BITTER TASTE, HYGROSCOPIC, ODORLESS, PKA1: 2.76, PKA2: 3.5, SPECIFIC OPTICAL ROTATION: +175 TO +185 DEG, 1 G SOL IN 1.2 ML WATER, 25 ML ALCOHOL, SOL IN METHANOL, DIL ALKALI, DIL ACID, INSOL IN…exp.

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
378.41 g/molcalc.
Exact mass
378.0886 Dacalc.
LogP (octanol/water)
0.49calc.
Topological polar surface area
124 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
5calc.
Heavy atoms
26calc.
Rings
3calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.41calc.
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(Cc1ccccc1)NC1C(=O)N2CCSC12

O=C(Cc1ccccc1)NC1C(=O)N2CCSC12

3 rings, 18 atoms.

177 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H317May cause an allergic skin reaction.
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled.
Precautionary statements (15)
  • P233Keep container tightly closed.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P271Use only outdoors or in a well-ventilated area.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P342 + P316If experiencing respiratory symptoms: Get emergency medical help immediately.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403Store in a well-ventilated place.
  • 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

Carbenicillin suppliers

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

All 28 suppliers
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Where suppliers are based

28 suppliers in 9 countries

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Carbenicillin 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

Use classes: Pharmaceuticals.

Pharmacological actions

  • Anti-Bacterial Agents

Roles

  • antibacterial agent
  • antibacterial drug
  • antiinfective agent
  • antimicrobial agent
  • antimicrobial drug
  • pharmaceutical

Pharmacology

Carbenicillin is a Penicillin-class Antibacterial.

How it is made

Acylation of 6-aminopenicillanic acid with monoesters of phenylmalonic acid followed by saponification with the aid of alpha-chymotrypsin or pancreatin

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 Carbenicillin 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 Carbenicillin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Carbenicillin?

Carbenicillin is a penicillin antibiotic having a 6beta-2-carboxy-2-phenylacetamido side-chain. It has a role as an antibacterial drug. It is a penicillin and a penicillin allergen. It is a conjugate acid of a carbenicillin(2-).

What is the CAS number of Carbenicillin?

The CAS registry number of Carbenicillin is 4697-36-3.

What is the molecular formula and weight of Carbenicillin?

The molecular formula of Carbenicillin is C17H18N2O6S and its molar mass is 378.41 g/mol.

What is Carbenicillin used for?

Use classes: Pharmaceuticals.

Is Carbenicillin hazardous?

Carbenicillin carries the GHS signal word "Danger". Main hazards: may cause an allergic skin reaction, may cause allergy or asthma symptoms or breathing difficulties if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Carbenicillin?

Carbenicillin 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 Carbenicillin?

CompoundList lists 28 suppliers of Carbenicillin in United States, China, Canada, Egypt and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Carbenicillin in India?

1 supplier in India list Carbenicillin on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Carbenicillin?

Suppliers quote Carbenicillin 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 Carbenicillin

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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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