ammonia n-13

Drug ingredient

CAS 34819-78-8

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

H₃N16.0 g/mol

no molecular structure to draw

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.

19 FDA-registered drug labelers

3D Imaging Drug Design and Development LLC

Biomedical Research Foundation of Northwest Louisiana

Brigham and Women's Hospital, Inc., The

Cardinal Health 414, LLC

Ionetix Corporation

Kreitchman PET Center

Massachusetts General Hospital

Mayo Clinic

PETNET Solutions, Inc.

Precision Nuclear LLC

SOFIE Co. dba SOFIE

THE FEINSTEIN INSTITUTES FOR MEDICAL RESEARCH

The Johns Hopkins University

The Methodist Hospital Research Institute

The University of Texas Southwestern Medical Center

UCSF Radiopharmaceutical Facility

University of Alabama at Birmingham

University of Wisconsin System

Washington University School of Medicine

Why It Matters

Sectors

Health

Downstream Uses

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

•Ammonia N 13

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Vendor Pricing

$1.59/gSigma-Aldrich (Rush Stock)

CountryGermany

Pack$1591.07 / 1 kg

Purity99.95%

Vendors6 available

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

5 more vendors

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich	Germany	$1.59	1 kg	99.95%
A2B Chem LLC	United States	$3.04	25 g	—
AA BLOCKS	United States	$3.12	25 g	—
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	90%
MedChemExpress MCE	Sweden	$990022.00	10 mg	99.15%

Chemical Identity

CAS34819-78-8

PubChem CID119432

DTXSIDDTXSID601027603

FormulaH3N

Mol. Weight16.03 g/mol

SMILESN

Data Sources

PubChem · compound 119432Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA National Drug Code directoryRetrieved 2026-04-07

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Brief citations

ammonia n-13 (CAS 34819-78-8) https://chemicalindependence.com/chemical/34819-78-8/ PubChem: 119432. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/119432 FDA National Drug Code directory: CAS 34819-78-8. 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/