penicillin g benzathine

Drug ingredientActive Shortage

CAS 41372-02-5

This drug ingredient is in active FDA shortage. At least one manufacturer cannot meet demand.

Molecular structure of 41372-02-5 — 4 H₂O

US productionNot reported

Top sourceNo public record

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Where It Comes From

EPA and Census publish no US supply data for this chemical.

6 FDA-registered drug labelers

A-S Medication Solutions

Aurobindo Pharma Limited

Fresenius Kabi iPSUM S.r.l.

LABORATRIOS ATRAL, S.A.

Pfizer Laboratories Div Pfizer Inc

Sandoz GmbH

Why It Matters

Sectors

Health

Downstream Uses

Appears in 4 drug and cosmetic product listings (FDA).

•Bicillin L-A
•Lentocilin
•Bicillin CR
•Bicillin C-R 900/300

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

Active Shortage

Shortage History

Rows group FDA shortage filings by drug product. Each manufacturer makes its own FDA shortage filing, so one product can carry several reports at once: Available, Limited Availability, Unavailable or to be discontinued.

Current shortage
Penicillin G Benzathine Injection
Shortage listed since April 26, 2023
Manufacturer reports: 1 unavailable, 1 limited, 1 available

See all current drug shortages

Chemical Identity

CAS41372-02-5

PubChem CID656811

DTXSIDDTXSID00194317

FormulaC48H64N6O12S2

Mol. Weight981.2 g/mol

SMILESCC1(C(N2C(S1)C(C2=O)NC(=O)CC3=CC=CC=C3)C(=O)O)C.CC1(C(N2C(S1)C(C2=O)NC(=O)CC3=CC=CC=C3)C(=O)O)C.C1=CC=C(C=C1)CNCCNCC2=CC=CC=C2.O.O.O.O

Data Sources

PubChem · compound 656811Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA Drug ShortagesRetrieved 2026-10-04

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Brief citations

penicillin g benzathine (CAS 41372-02-5) https://chemicalindependence.com/chemical/41372-02-5/ PubChem: 656811. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/656811 FDA National Drug Code directory: CAS 41372-02-5. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA Drug Shortages: CAS 41372-02-5. Retrieved 2026-10-04. https://www.accessdata.fda.gov/scripts/drugshortages/