azacitidine

Drug ingredientActive Shortage

CAS 320-67-2

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

US productionNot reported

Import value, 2024$6.4B

Top sourceSingapore 36%

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 293499 · basket

These shares come from HS customs code 293499, which covers 575 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).

SG 36%SingaporeIE 23%IrelandCN 11%ChinaCH 6%SwitzerlandIN 5%India

Finland
Netherlands
Canada
Indonesia
Mexico
Taiwan
South Korea
Austria
Croatia
Sweden
Ukraine
Denmark
Israel
Czech Republic
New Zealand
Hong Kong
Kyrgyzstan
Australia
Portugal
South Africa
Poland
Slovenia
Brazil
Slovakia
Vietnam
Latvia
Malta
Hungary
Romania
Kenya
Belarus
Russia
Turkey
Norway

37 FDA-registered drug labelers

Accord Healthcare Inc.

Amneal Pharmaceuticals LLC

Apotex Corp

Armas Pharmaceuticals Inc.

Aurobindo Pharma Limited

BluePoint Laboratories

Camber Pharmaceuticals, Inc.

Celgene Corporation

Chongqing Sintaho Pharmaceutical Co., Ltd.

Civica, Inc.

Dr. Reddy's Laboratories Inc.

Dr.Reddys Laboratories Limited

Eugia US LLC

Excella GmbH & Co. KG

Fresenius Kabi USA, LLC

Hetero Labs Limited

Hikma Pharmaceuticals USA Inc.

Huzhou Zhanwang Pharmaceutical Co. Ltd

Jiangsu Hansoh Pharmaceutical Group Co., Ltd.

LAURUS LABS LIMITED

Meitheal Pharmaceuticals Inc.

MSN LABORATORIES PRIVATE LIMITED

NorthStar RxLLC

Olon S.p.A.

Panacea Biotec Limited

Pilnova Pharma Inc

Reliance Life Sciences Private Limited

Sandoz Inc

ScinoPharm Taiwan Ltd.

Shanghai Huilun Jiangsu Pharmaceutical Co., Ltd.

SHILPA PHARMA LIFESCIENCES LIMITED

Sicor de Mexico S.A. de C.V

Sicor S.r.l.

Somerset Therapeutics LLC

SUN PHARMACEUTICAL INDUSTRIES, INC.

VALARY LAB PRIVATE LIMITED

Wuhan Biocause Pharmaceutical Development Co., Ltd

Why It Matters

Sectors

Health

Downstream Uses

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

•Azacitidine
•Onureg
•Azacitidine Azacitidine
•Vidaza

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
Azacitidine Injection
Shortage listed since December 18, 2020
Manufacturer reports: 1 unavailable, 2 available

See all current drug shortages

Chemical Identity

CAS320-67-2

PubChem CID9444

DTXSIDDTXSID9020116

FormulaC8H12N4O5

Mol. Weight244.2 g/mol

SMILESC1=NC(=NC(=O)N1C2C(C(C(O2)CO)O)O)N

Data Sources

PubChem · compound 9444Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA Drug ShortagesRetrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

azacitidine (CAS 320-67-2) https://chemicalindependence.com/chemical/320-67-2/ PubChem: 9444. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/9444 FDA National Drug Code directory: CAS 320-67-2. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA Drug Shortages: CAS 320-67-2. Retrieved 2026-10-04. https://www.accessdata.fda.gov/scripts/drugshortages/ US Census international trade: HS 293499 for CAS 320-67-2. Reporting year: 2024. https://usatrade.census.gov/