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Pyrrolidinyl diaminopyrimidine oxide

Drug ingredient

CAS 55921-65-8

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

Molecular structure of 55921-65-8
US productionNot reported
Top sourceNo public record

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Where It Comes From

EPA and Census publish no US supply data for this chemical.

2 FDA-registered drug labelers
Guangdong Miaolian Cosmetics Co., Ltd.
Jinzhitang (Foshan) Biotechnology Co.,LTD

Why It Matters

Sectors
Health
Downstream Uses

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

  • •Snidin
  • •Wachinas Hair Growth Oil
FDA Shortage Status
No FDA shortage records

Vendor Pricing

$29.00/gAK Scientific, Inc.
CountryUnited States
Pack$29.00 / 1 g
Purity97%
Vendors1 available

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

Chemical Identity

CAS55921-65-8
PubChem CID15556995
DTXSIDDTXSID701021789
FormulaC8H13N5O
Mol. Weight195.22 g/mol
SMILESC1CCN(C1)C2=NC(=N)N(C(=C2)N)O

Data Sources

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Brief citations

Pyrrolidinyl diaminopyrimidine oxide (CAS 55921-65-8) https://chemicalindependence.com/chemical/55921-65-8/ PubChem: 15556995. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/15556995 FDA National Drug Code directory: CAS 55921-65-8. 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/