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Adenine

Drug ingredient

CAS 73-24-5

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

Molecular structure of 73-24-5
US productionNot reported
Import value, 2024$7.6B
Top sourceIreland 61%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

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 293359 · basket

These shares come from HS customs code 293359, which covers 295 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 61%IrelandCH 30%SwitzerlandGB 2%United KingdomCN 2%ChinaIN 1%India
8 FDA-registered drug labelers
Citra Labs, LLC
Energique, Inc.
Fenwal, Inc.
GVS TM INC
Professional Complementary Health Formulas
Terumo BCT, Ltd
Terumo Corporation
Topchem Pharmaceuticals Ltd

Why It Matters

Sectors
Health
Downstream Uses

Appears in 9 drug and cosmetic product listings (FDA).

  • •CPDA-1
  • •Adenine 3X
  • •AS-3
  • •Additive Formula 3
  • •Teruflex Blood with Diversion Blood Sampling Arm 70 mL CPDA-1
  • •teruflex blood bag system with diversion blood sampling arm 70 ml cpda-1
  • •Adenine 1546
  • •Rejuvesol
Show all 9
  • •Teruflex Blood Anticoagulant Citrate Phosphate Dextrose Adenine (CPDA-1) for Collection of 450mL of Blood
FDA Shortage Status
No FDA shortage records

Vendor Pricing

$0.04/gAaron Chemicals LLC
CountryHong Kong
Pack$20.00 / 500 g
Purity99%
Vendors28 available

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

27 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.05500 g99%
AstaTech, IncUnited States$0.13100 g95%
AA BLOCKSUnited States$0.14500 g98%
Manchester OrganicsUnited Kingdom$0.14500 g95%
A2B Chem LLCUnited States$0.15250 g98%
AK Scientific SpecializedUnited States$0.21500 g95%
ChemsceneUnited States$0.22250 g—
Combi-Blocks, Inc.United States$0.251 kg97%
Ambeed, Inc.United States$0.27500 g98%
AK Scientific, Inc.United States$0.29500 g98%
Apollo Scientific USUnited Kingdom$0.33500 g99%
Angene International LimitedUnited States$2.9625 g98%
Sigma-Aldrich (Rush Stock)Germany$3.471 kg99%
Sigma-AldrichGermany$3.471 kg99%
MedChemExpress MCESweden$7.2125 g99.99%
Apexbio Technology LLCUnited States$12.405 g98.67%
Life Chemicals Inc.Ukraine → Canada$38.00500 mg95%
TargetMol ChemicalsChina → United States$50.001 g99.99%
Vitas M Chemical LimitedHong Kong$102.005 g90%
Labotest KGGermany$217.805000 mg90%
HTS Biochemie InnovationenGermany$510.005 g95%
ChemFacesChina$1500.0020 mg98%
Princeton BioMolecular Research (SC)United States$2900.00100 mg90%
AngeneChina → Hong Kong$4266.6730 mg99%
AsinexNetherlands$6461.40100 mg90%
Key Organics Ltd.United Kingdom$8500.0010 mg99%
TimTec, LLC (back-ordered)United States$32000.0015 mg94%

Chemical Identity

CAS73-24-5
PubChem CID190
DTXSIDDTXSID6022557
FormulaC5H5N5
Mol. Weight135.13 g/mol
SMILESC1=NC2=NC=NC(=C2N1)N

Data Sources

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Brief citations

Adenine (CAS 73-24-5) https://chemicalindependence.com/chemical/73-24-5/ PubChem: 190. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/190 EPA TSCA Inventory: CAS 73-24-5. Retrieved 2026-04-24. https://www.epa.gov/tsca-inventory FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293359 for CAS 73-24-5. Reporting year: 2024. https://usatrade.census.gov/