How it works

One controlled workflow for chemical sourcing and seller quoting.

CAS-Search connects buyer enquiries to seller capabilities using CAS-number matching. Buyers post structured requirements. Sellers receive only relevant opportunities and quote within a clear time window.

Buyer Workflow Seller Workflow

Buyer

Post enquiries with structure and control

Buyers search by product or CAS number, choose up to 5 matching sellers, and submit one controlled enquiry. Seller responses come back into the buyer dashboard for comparison.

Buyer signup is free.
Every enquiry is tied to a product and CAS number.
Matching sellers are selected by CAS capability mapping.
Buyer contact details remain controlled until the right seller is shortlisted.

See buyer steps

Seller

Receive matched enquiries and quote within 48 hours

Sellers publish product capabilities mapped by CAS number. When a buyer selects a matching seller, the enquiry is queued and appears in the seller workspace.

Seller plan is $99/year, with EARLY99 available for free early access.
Seller accounts also include buyer access for sourcing.
Each assigned enquiry has a 48-hour quote window.
Quotes can be revised before the enquiry closes.

See seller steps

Marketplace flow

From product search to shortlisted quote

The platform is designed to avoid random broadcast enquiries. Each request moves through a controlled path.

Product Search

Buyer searches by chemical name or CAS number and opens the selected product.

CAS Matching

CAS-Search shows sellers mapped to the exact CAS number for that product.

Seller Selection

Buyer selects up to 5 sellers and posts the enquiry with quantity, unit, timeline and notes.

Queued Delivery

Seller notifications are queued in the mail spool so the admin can send them in stable batches.

Seller Quote Window

Sellers quote from their dashboard within 48 hours, including price, currency, stock availability and remarks.

Buyer Comparison

Buyer reviews received quotes, compares offers, and shortlists the seller they want to proceed with.

Important platform rules

Buyer-only accounts cannot sell.They can post enquiries and manage quote comparison, but cannot access seller dashboards or upload seller products.

Seller accounts can buy.A seller account also receives buyer access, so the same company can source chemicals when needed.

Matching Sellers means CAS-matched sellers.The enquiry page shows sellers mapped to the same CAS number as the selected product.

Maximum 5 sellers per enquiry.This keeps enquiries focused and prevents sellers from receiving low-quality broadcast requests.

48-hour seller quote window.Sellers should submit or revise quotes before the quote window closes.

Email delivery is queued.Enquiry and notification emails go into the mail spool and can be sent in controlled batches every 15 minutes.