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Screening compounds

Tomopenem

Also known as CS023 cpd, tomopenemum, Tomopenem (USAN/INN)

CAS 222400-20-6Formula C23H35N7O6SMolar mass 537.64 g/mol
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Tomopenem chemical structure, C23H35N7O6S, CAS 222400-20-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
222400-20-6
Formula
C23H35N7O6S
Molar mass
537.64 g/mol
HS code
293379
Category
Screening compounds

What is Tomopenem?

Plain description, key identifiers and synonyms

Tomopenem is a 1-beta-methylcarbapenem antibiotic with broad-spectrum activity against gram-positive and gram-negative bacteria. Tomopenem has a longer half-life than imipenem-cilastatin or meropenem and shows activity against methicillin-resistant S. aureus.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(4R,5S,6S)-3-[(3S,5S)-5-[(3S)-3-[[2-(diaminomethylideneamino)acetyl]amino]pyrrolidine-1-carbonyl]-1-methylpyrrolidin-3-yl]sulfanyl-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
CAS number
222400-20-6 CAS number cross-checked
Molecular formula
C23H35N7O6S
UNII
1654W9611T
InChIKey
KEDAXBWZURNCHS-GPODMPQUSA-N
InChI
InChI=1S/C23H35N7O6S/c1-10-17-16(11(2)31)21(34)30(17)18(22(35)36)19(10)37-13-6-14(28(3)9-13)20(33)29-5-4-12(8-29)27-15(32)7-26-23(24)25/h10-14,16-17,31H,4-9H2,1-3H3,(H,27,32)(H,35,36)(H4,24,25,26)/t10-,11-,12+,13+,14+,16-,17-/m1/s1
Canonical SMILES
CC(O)C1C(=O)N2C(C(=O)O)=C(SC3CC(C(=O)N4CCC(NC(=O)CN=C(N)N)C4)N(C)C3)C(C)C12
Isomeric SMILES
C[C@@H]1[C@@H]2[C@H](C(=O)N2C(=C1S[C@H]3C[C@H](N(C3)C)C(=O)N4CC[C@@H](C4)NC(=O)CN=C(N)N)C(=O)O)[C@@H](C)O

Synonyms

  • CS023 cpd
  • tomopenemum
  • Tomopenem (USAN/INN)

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
537.64 g/molcalc.
Exact mass
537.237 Dacalc.
LogP (octanol/water)
-2.06calc.
Topological polar surface area
194.9 Ųcalc.
Hydrogen bond donors
5calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
8calc.
Heavy atoms
37calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.7calc.
Formal charge
0calc.
Stereocentres
7calc.
Lipinski rule of five
Passes (1 violation)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(C1CC(SC2=CN3C(=O)CC3C2)CN1)N1CCCC1

O=C(C1CC(SC2=CN3C(=O)CC3C2)CN1)N1CCCC1

4 rings, 21 atoms.

No other chemical in our database has 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.

Tomopenem suppliers

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Tomopenem 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

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 Tomopenem is traded under.

HS 2933.79Indicative HS code

Lactams, other lactams

World exports in 2024
$16.2B
−64.4% vs 2023, imports $15.4B
2019 to 2024
Top exporters
  1. Ireland37.0%
  2. France * partner reported15.6%
  3. Spain11.3%
Top importers
  1. Germany27.8%
  2. Ireland18.9%
  3. Panama * partner reported12.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Tomopenem?

Tomopenem is a 1-beta-methylcarbapenem antibiotic with broad-spectrum activity against gram-positive and gram-negative bacteria. Tomopenem has a longer half-life than imipenem-cilastatin or meropenem and shows activity against methicillin-resistant S. aureus.

What is the CAS number of Tomopenem?

The CAS registry number of Tomopenem is 222400-20-6.

What is the molecular formula and weight of Tomopenem?

The molecular formula of Tomopenem is C23H35N7O6S and its molar mass is 537.64 g/mol.

What is Tomopenem used for?

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

Is Tomopenem hazardous?

No GHS hazard classification for Tomopenem 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 Tomopenem?

Tomopenem is usually classified under HS code 293379 (Lactams, other lactams). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Tomopenem?

Post a free request on CompoundList and suppliers of Tomopenem will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Tomopenem?

Suppliers quote Tomopenem 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 Tomopenem

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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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