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FD&C Blue No. 1

Drug ingredient

CAS 3844-45-9

This drug ingredient has classified U.S. production volumes. EPA withholds the number as confidential business information.

Molecular structure of 3844-45-9
2 Na⁺
US productionCBI
Import value, 2024$56M
Top sourceIndia 70%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 320412 · basket

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 320412, which covers 106 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 70%IndiaMY 7%MalaysiaCH 4%SwitzerlandCN 4%ChinaDE 3%Germany
EPA-registered manufacturers (1)
Dystar
Domestic parents -- activity not disclosed (1)
Sensient Colors
EPA-registered importers (4)
Aakash Chemicals
S.C. Johnson & Son
Sepro
Target
1 FDA-registered drug labeler
ANUBIS COSMETICS SL

Why It Matters

Sectors
HealthFoodConsumer ProductsTextilesAgriculture
Downstream Uses

Appears in 3 drug and cosmetic product listings (FDA).

  • •Anubis Barcelona New Even
  • •Anubis Barcelona
  • •Anubis Barcelona Total Hydrating
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 4 sectors as 1 functional role.

  • •Dye in Food, beverage, and tobacco product manufacturing (57%)Processing—incorporation into formulation, mixture, or reaction product
  • •Dye in Agriculture, Forestry, Fishing and Hunting (43%)Processing—incorporation into formulation, mixture, or reaction product
  • •Dye in Synthetic Dye and Pigment Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Dye in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.14/gAaron Chemicals LLC
CountryHong Kong
Pack$70.00 / 500 g
Purity95%
Vendors14 available

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

13 more vendors
VendorCountry$/gPackPurity
Apollo Scientific UKUnited Kingdom$0.1510 kg85%
Angene ChemicalChina → Hong Kong$0.15500 g85%
A2B Chem LLCUnited States$0.16500 g—
AA BLOCKSUnited States$0.21500 g98%
Ambeed, Inc.United States$1.0825 g85%
AK Scientific, Inc.United States$1.53100 g95%
AK Scientific SpecializedUnited States$1.53100 g95%
Sigma-Aldrich (Rush Stock)Germany$5.9525 g—
Sigma-AldrichGermany$5.9525 g—
Angene International LimitedUnited States$6.7625 g95%
MedKoo Biosciences, IncUnited States$18.0025 g98%
AngeneChina → Hong Kong$4266.6730 mg98%
MolnovaChina$9800.005 mg99%

Chemical Identity

CAS3844-45-9
PubChem CID19700
DTXSIDDTXSID2020189
FormulaC37H34N2Na2O9S3
Mol. Weight792.9 g/mol
SMILESCCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3)C5=CC=CC=C5S(=O)(=O)[O-].[Na+].[Na+]

Data Sources

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Brief citations

FD&C Blue No. 1 (CAS 3844-45-9) https://chemicalindependence.com/chemical/3844-45-9/ EPA CompTox (DSSTox): DTXSID2020189. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2020189 PubChem: 19700. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/19700 EPA Chemical Data Reporting: 3844-45-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: CAS 3844-45-9. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 320412 for CAS 3844-45-9. Reporting year: 2024. https://usatrade.census.gov/