Tazobactam sodium

Drug ingredient

CAS 89785-84-2

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

Molecular structure of 89785-84-2 — 1 Na⁺

US productionNot reported

Import value, 2024$546M

Top sourceItaly 41%

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

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 294190 · basket

These shares come from HS customs code 294190, which covers 90 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

IT 41%ItalyCN 24%ChinaDK 9%DenmarkHR 6%CroatiaIN 6%India

United Kingdom
Slovakia
Slovenia
Mexico
Canada
Germany
Belgium
Japan
Switzerland
Netherlands
Czech Republic
Uruguay
South Korea
Hong Kong
Portugal
Australia

21 FDA-registered drug labelers

ACS DOBFAR SPA

Apotex Corp.

Armas Pharmaceuticals Inc.

Avenacy, LLC

B. Braun Medical Inc.

Baxter Healthcare Corporation

BluePoint Laboratories

Civica, Inc.

Eugia US LLC

Fresenius Kabi iPSUM S.r.l.

Fresenius Kabi USA, LLC

Hospira, Inc

Merck Sharp & Dohme LLC

Mitim S.r.l.

ONESOURCE SPECIALTY PHARMA LIMITED

Provepharm Inc.

Sagent Pharmaceuticals

Sandoz Inc

Shandong Anxin Pharmaceutical Co., Ltd.

WG Critical Care, LLC

Wyeth Pharmaceuticals LLC, a subsidiary of Pfizer Inc.

Why It Matters

Sectors

Health

Downstream Uses

Appears in 6 drug and cosmetic product listings (FDA).

•piperacillin and tazobactam
•Zosyn
•Zosyn in Galaxy Containers
•Piperacillin and Tazobactam and Sodium Chloride
•Zerbaxa
•Piperacillin, Tazobactam

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."

No FDA shortage records

Chemical Identity

CAS89785-84-2

PubChem CID23663400

DTXSIDDTXSID8046030

FormulaC10H11N4NaO5S

Mol. Weight322.28 g/mol

SMILESCC1(C(N2C(S1(=O)=O)CC2=O)C(=O)[O-])CN3C=CN=N3.[Na+]

Data Sources

PubChem · compound 23663400Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Tazobactam sodium (CAS 89785-84-2) https://chemicalindependence.com/chemical/89785-84-2/ PubChem: 23663400. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/23663400 FDA National Drug Code directory: CAS 89785-84-2. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 294190 for CAS 89785-84-2. Reporting year: 2024. https://usatrade.census.gov/