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Cytidine

CAS 65-46-3

Molecular structure of 65-46-3
US productionNot reported
Import value, 2024$6.4B
Top sourceSingapore 36%

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 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

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Vendor Pricing

$1.28/gCombi-Blocks, Inc.
CountryUnited States
Pack$640.00 / 500 g
Purity95%
Vendors4 available

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

3 more vendors
VendorCountry$/gPackPurity
AK Scientific SpecializedUnited States$1.60100 g95%
AK Scientific, Inc.United States$2.14100 g98%
Otava, Ltd. (2 weeks)Ukraine$2724.0050 mg90%

Chemical Identity

CAS65-46-3
PubChem CIDNot recorded
DTXSIDDTXSID60891552
FormulaC9H13N3O5
Mol. Weight243.219 g/mol
SMILESNC1=NC(=O)N(C=C1)[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O

Data Sources

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Brief citations

Cytidine (CAS 65-46-3) https://chemicalindependence.com/chemical/65-46-3/ EPA TSCA Inventory: CAS 65-46-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293499 for CAS 65-46-3. Reporting year: 2024. https://usatrade.census.gov/