# Ethyl Chloride — CGA cylinder valve connection number by gas For Ethyl Chloride, source chart is Matheson; cga connection number is 300*; which chart the row is from is Pure Gases, recorded from its source on 2026-08-28. - **Gas:** Ethyl Chloride _(verified: appears in the quote below)_ - **Source chart:** Matheson _(our reading, not quoted from the source)_ - **CGA connection number:** 300* _(verified: appears in the quote below)_ - **Which chart the row is from:** Pure Gases _(our reading, not quoted from the source)_ ## What the source says > Ethyl Chloride 300* ## Source - https://us.nipponsanso.com/pdfs/gasequipment/CGA-Connection-Chart.pdf Last verified: 2026-08-28. Review by: 2028-08-27. Part of [CGA cylinder valve connection number by gas](https://referencesource.org/cga-cylinder-valve-connection-by-gas/).