Type a chemical, a CAS number or a product code, and Sourzi puts every check it can run on one card: the chemical register, the duty, anti dumping cases and the supplier.
Each row shows the official file it came from and the date of that file. Where Sourzi does not hold the answer, the row says so instead of guessing.
One row needs a check before you order, and 3 rows are gaps Sourzi cannot fill yet.
TSCA (US register)
Not found
CAS 7446-19-7 is not in the stored copy of the TSCA inventory, the US chemical register. A miss is not a clearance: the public file leaves out confidential listings.
Add the product (HTS) code to look up the US general duty.
Section 301 (China)
Not stored
Sourzi does not store the Section 301 rate on goods of China yet, so this row is a gap, not a guess. Confirm the rate with your customs broker before you price the order.
Add the product (HTS) code to check the stored US anti dumping and countervailing cases on goods of China.
Supplier check
Add supplier
Add the supplier's company name to screen it against the DFAT sanctions list and the US UFLPA Entity List.
Watch CAS 7446-19-7
Duty rates, anti dumping cases and register listings change after you have checked them once. Sourzi is building a daily watch that emails you the day a row on this card changes.
Leave your email and you get one message when the watch is live for CAS 7446-19-7, and nothing else.
Sourzi uses an essential session cookie. With your consent Google Analytics measures public visits. Optional Meta advertising cookies measure marketing-page visits and Facebook ads; Meta receives browser information and eligible public page URLs. With advertising consent, our server also shares verified signup and purchase events, payment value and currency, and browser advertising identifiers. Private page URLs, credentials, form contents and uploads are excluded. Vercel Analytics fires either way; it sets no cookies and records anonymous edge samples only. Full processor list in the privacy policy.