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riboflavin 5'-phosphate

Drug ingredient

CAS 146-17-8

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

Molecular structure of 146-17-8
US productionNot reported
Import value, 2024$44M
Top sourceChina 60%

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 293623 · narrow

These shares come from HS customs code 293623, which covers 3 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 60%ChinaDE 20%GermanyKR 18%South KoreaIN 1%IndiaZA 1%South Africa
1 FDA-registered drug labeler
V2 Pharma LLC

Why It Matters

Sectors
Health
Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

  • •Cobalefol
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS146-17-8
PubChem CID643976
DTXSIDDTXSID8023559
FormulaC17H21N4O9P
Mol. Weight456.3 g/mol
SMILESCC1=CC2=C(C=C1C)N(C3=NC(=O)NC(=O)C3=N2)CC(C(C(COP(=O)(O)O)O)O)O

Data Sources

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Brief citations

riboflavin 5'-phosphate (CAS 146-17-8) https://chemicalindependence.com/chemical/146-17-8/ PubChem: 643976. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/643976 FDA National Drug Code directory: CAS 146-17-8. 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 293623 for CAS 146-17-8. Reporting year: 2024. https://usatrade.census.gov/