Nelarabine

Drug ingredient

CAS 121032-29-9

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

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

20 FDA-registered drug labelers

Alembic Pharmaceuticals Inc.

Alembic Pharmaceuticals Limited

Amneal Pharmaceuticals LLC

Chongqing Biocare Pharmaceutical Ltd.

Dr. Reddy's Laboratories, Inc.

Gemini PharmChem Mannheim GmbH

Gland Pharma Limited

Meitheal Pharmaceuticals Inc

MSN Laboratories Private Limited

Novadoz Pharmaceuticals LLC

Novartis Pharmaceuticals Corporation

Sagent Pharmaceuticals

Sandoz Inc

ScinoPharm Taiwan Ltd.

Shorla Oncology Inc.

SIONC PHARMACEUTICALS PVT LTD

ThermoFisher Scientific Cork

XGen Pharmaceuticals DJB, Inc.

Zydus Lifesciences Limited

Zydus Pharmaceuticals USA Inc.

Why It Matters

Sectors

Health

Downstream Uses

Appears in 2 drug and cosmetic product listings (FDA).

•Nelarabine
•Arranon

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

Vendor Pricing

$4.76/gSigma-Aldrich (Rush Stock)

CountryGermany

Pack$118.99 / 25 g

PurityNot recorded

Vendors2 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

1 more vendor

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich	Germany	$4.76	25 g	—

Chemical Identity

CAS121032-29-9

PubChem CID3011155

DTXSIDDTXSID6046842

FormulaC11H15N5O5

Mol. Weight297.27 g/mol

SMILESCOC1=NC(=NC2=C1N=CN2C3C(C(C(O3)CO)O)O)N

Data Sources

PubChem · compound 3011155Retrieved 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

Nelarabine (CAS 121032-29-9) https://chemicalindependence.com/chemical/121032-29-9/ PubChem: 3011155. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/3011155 FDA National Drug Code directory: CAS 121032-29-9. 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 121032-29-9. Reporting year: 2024. https://usatrade.census.gov/