Phosphorothioic triamide, N-propyl-

CAS 916809-14-8

EPA’s 2019 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$133M

Top sourceChina 47%

EPA lists this chemical for 2019 but publishes zero or no volume for both production and imports.

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 292990 · basket

EPA reports by year

2019: US production Zero · Imports Zero

These shares come from HS customs code 292990, which covers 38 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CN 47%ChinaDE 20%GermanyIN 14%IndiaGB 4%United KingdomKR 4%South Korea

Canada
Spain
Taiwan
Malaysia
Mexico
Ukraine
Netherlands
Russia
Latvia
Ireland
Australia
Sweden
Austria
Lithuania

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Basf

Why It Matters

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

Vendor Pricing

$1.60/gA2B Chem LLC (2 weeks)

CountryUnited States

Pack$160.00 / 100 g

Purity97%

Vendors6 available

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

5 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS (2 weeks)	United States	$1.69	100 g	97%
Aaron Chemicals LLC	Hong Kong	$1.79	100 g	97%
Angene Chemical	China → Hong Kong	$1.87	100 g	97%
Combi-Blocks, Inc.	United States	$150.00	5 g	97%
Angene	China → Hong Kong	$4266.67	30 mg	97%

Chemical Identity

CAS916809-14-8

PubChem CID56623889

DTXSIDDTXSID501020961

FormulaC3H12N3PS

Mol. Weight153.19 g/mol

SMILESCCCNP(=S)(N)N

Data Sources

EPA CompTox (DSSTox) · DTXSID501020961Retrieved 2026-04-06
PubChem · compound 56623889Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Phosphorothioic triamide, N-propyl- (CAS 916809-14-8) https://chemicalindependence.com/chemical/916809-14-8/ EPA CompTox (DSSTox): DTXSID501020961. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID501020961 PubChem: 56623889. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/56623889 EPA Chemical Data Reporting: 916809-14-8. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292990 for CAS 916809-14-8. Reporting year: 2024. https://usatrade.census.gov/