Skip to content
Molekula

CAS Registry Number

CAS 10294-66-3 — Potassium thiosulfate

CAS 10294-66-3 K2O3S2 MW 190.3248

Potassium thiosulfate is an inorganic compound with the chemical formula K2O3S2, primarily used as a reducing agent, antichlor in water treatment, and in photography for fixing developed films. It’s also employed in chemical analysis, gold extraction, and as a food additive (E227) to prevent discoloration. This chemical has a CAS number of 10294-66-3, a molecular weight of 190.3248, and requires ambient storage conditions. It carries no signal word under standard hazard classifications. Molekula supplies potassium thiosulfate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Also known as: Potassium thiosulphate 50% aqueous solution

View product details

Molekula products for CAS 10294-66-3

Molekula has supplied fine chemicals and biochemicals since 2000 from ISO 9001:2015 and ISO 14001:2015 certified facilities. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.

Request a quote
Tell us the product and the quantity you need — including quantities larger than our listed packs. We usually reply within one working day.
Full name
Company
Email
Phone (optional)
Product
Quantity needed

Ask for whatever you actually need — the pack sizes on our catalogue pages are a starting point, not a limit.

Message
Buy now
Leave your details and we'll be in touch shortly.
Full name
Company
Email
Phone (optional)
How many packs?
Message