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Lamivudine

Drug ingredient

CAS 134678-17-4

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

Molecular structure of 134678-17-4
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
SG 36%SingaporeIE 23%IrelandCN 11%ChinaCH 6%SwitzerlandIN 5%India
37 FDA-registered drug labelers
American Health Packaging
Apotex Corp.
Aurobindo Pharma Limited
Bora Pharmaceutical Services Inc.
Bryant Ranch Prepack
Camber Pharmaceuticals, Inc.
Chartwell Govermental & Specialty RX, LLC.
Chartwell RX, LLC
Cipla Ltd.
Cipla USA Inc.
Coupler LLC
EMNAR PHARMA PRIVATE LIMITED
Exelan Pharmaceuticals Inc.
Glaxo Operations UK Ltd
Glaxo Wellcome Manufacturing Pte. Ltd
GlaxoSmithKline LLC
Golden State Medical Supply, Inc.
Hetero Labs Limited
Ingenus Pharmaceuticals, LLC
LAURUS LABS LIMITED
Lupin Pharmaceuticals, Inc.
Macleods Pharmaceuticals Limited
Major Pharmaceuticals
Matrix Pharmacorp Private Limited
Merck Sharp & Dohme LLC
MSD International GmbH
PD-Rx Pharmaceuticals, Inc.
Rising Pharma Holdings, Inc.
Shijiazhuang Lonzeal Pharmaceuticals Co., Ltd.
Signa S.A. de C.V.
SMS Pharmaceuticals Limited
Strides Pharma Science Limited
Viatris Specialty LLC
ViiV Healthcare Company
Vijayasri Organics Private Limited
Viyash Life Sciences Private Limited
XLCare Pharmaceuticals, Inc

Why It Matters

Sectors
Health
Downstream Uses

Appears in 12 drug and cosmetic product listings (FDA).

  • •Lamivudine and Zidovudine
  • •Abacavir and Lamivudine
  • •Delstrigo
  • •Epivir
  • •Lamivudine
  • •Efavirenz, Lamivudine and Tenofovir Disoproxil Fumarate
  • •Triumeq
  • •Symfi
Show all 12
  • •Combivir
  • •Dovato
  • •Cimduo
  • •Abacavir, Lamivudine AND Zidovudine
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS134678-17-4
PubChem CID60825
DTXSIDDTXSID7023194
FormulaC8H11N3O3S
Mol. Weight229.26 g/mol
SMILESC1C(OC(S1)CO)N2C=CC(=NC2=O)N

Data Sources

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Brief citations

Lamivudine (CAS 134678-17-4) https://chemicalindependence.com/chemical/134678-17-4/ PubChem: 60825. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/60825 FDA National Drug Code directory: CAS 134678-17-4. 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 293499 for CAS 134678-17-4. Reporting year: 2024. https://usatrade.census.gov/