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Antibiotics and anti-infectives

Lenampicillin

Also known as Lenampicilina, Lenampicilline, Lenampicillinum

CAS 86273-18-9Formula C21H23N3O7SMolar mass 461.50 g/mol
1 supplier listed
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Lenampicillin chemical structure, C21H23N3O7S, CAS 86273-18-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
86273-18-9
Formula
C21H23N3O7S
Molar mass
461.50 g/mol
HS code
294110
Category
Antibiotics and anti-infectives

What is Lenampicillin?

Plain description, key identifiers and synonyms

Lenampicillin is a penicillanic acid ester that is the (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl ester of ampicillin. It is a prodrug of ampicillin. It has a role as a prodrug. It is a ketene acetal and a penicillanic acid ester. It is functionally related to an ampicillin.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(5-methyl-2-oxo-1,3-dioxol-4-yl)methyl (2S,5R,6R)-6-[[(2R)-2-amino-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate
CAS number
86273-18-9 CAS number cross-checked
Molecular formula
C21H23N3O7S
UNII
8M568DM08K
InChIKey
ZKUKMWMSYCIYRD-ZXFNITATSA-N
InChI
InChI=1S/C21H23N3O7S/c1-10-12(31-20(28)30-10)9-29-19(27)15-21(2,3)32-18-14(17(26)24(15)18)23-16(25)13(22)11-7-5-4-6-8-11/h4-8,13-15,18H,9,22H2,1-3H3,(H,23,25)/t13-,14-,15+,18-/m1/s1
Canonical SMILES
Cc1oc(=O)oc1COC(=O)C1N2C(=O)C(NC(=O)C(N)c3ccccc3)C2SC1(C)C
Isomeric SMILES
CC1=C(OC(=O)O1)COC(=O)[C@H]2C(S[C@H]3N2C(=O)[C@H]3NC(=O)[C@@H](C4=CC=CC=C4)N)(C)C

Synonyms

  • Lenampicilina
  • Lenampicilline
  • Lenampicillinum
  • (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl (2S,5R,6R)-6-[[(2R)-2-amino-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate
  • Lenampicillin (INN)
  • 2,3-Dihydroxy-2-butenyl(2S,5R,6R)-6-((R)-2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate, cyclic carbonate
  • KBT 1585 hydrochloride
  • (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl (2S,5R,6R)-6-{[(2R)-2-amino-2-phenylacetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate
  • (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl (2S,5R,6R)-6-((R)-2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate
  • ampicillin 5-methyl-2-oxo-1,3-dioxol-4-yl methyl ester
  • (5-Methyl-2-oxo-2H-1,3-dioxol-4-yl)methyl (2S,5R,6R)-6-{[(2R)-2-amino-2-phenylacetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate

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
461.50 g/molcalc.
Exact mass
461.1257 Dacalc.
LogP (octanol/water)
0.83calc.
Topological polar surface area
145.1 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
9calc.
Rotatable bonds
6calc.
Heavy atoms
32calc.
Rings
4calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.43calc.
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)N2C(C(=O)OCc3coc(=O)o3)CSC12

O=C(Cc1ccccc1)NC1C(=O)N2C(C(=O)OCc3coc(=O)o3)CSC12

4 rings, 28 atoms.

2 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.

Lenampicillin suppliers

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Where suppliers are based

1 supplier in 1 country

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Lenampicillin 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

Roles

  • pharmaceutical
  • pro-agent
  • prodrug

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

Frequently asked questions

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

What is Lenampicillin?

Lenampicillin is a penicillanic acid ester that is the (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl ester of ampicillin. It is a prodrug of ampicillin. It has a role as a prodrug. It is a ketene acetal and a penicillanic acid ester. It is functionally related to an ampicillin.

What is the CAS number of Lenampicillin?

The CAS registry number of Lenampicillin is 86273-18-9.

What is the molecular formula and weight of Lenampicillin?

The molecular formula of Lenampicillin is C21H23N3O7S and its molar mass is 461.50 g/mol.

What is Lenampicillin used for?

Known uses and roles of Lenampicillin include antibacterials and antibiotics in pharmaceuticals, polymer antioxidants in plastics and polymers, pharmaceutical, pro-agent and prodrug.

Is Lenampicillin hazardous?

No GHS hazard classification for Lenampicillin 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 Lenampicillin?

Lenampicillin 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 Lenampicillin?

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

What is the price of Lenampicillin?

Suppliers quote Lenampicillin 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 Lenampicillin

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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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