Basic Blue 3

碱性蓝3

Also known as: C.I. Basic Blue 3, 3,7-bis(diethylamino)phenoxazin-5-ium chloride, Basic Blue 3 (dye)

Basic Blue 3 (CAS 55840-82-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C20H26ClN3O and a molecular weight of 359.89300 g/mol. It is also known as C.I. Basic Blue 3, 3,7-bis(diethylamino)phenoxazin-5-ium chloride and Basic Blue 3 (dye). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 55840-82-9
Jingsj CID: J-1328969-8
Molecular Formula: C₂₀H₂₆ClN₃O
Chinese Name: 碱性蓝3
Molecular Weight: 359.89300 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of Basic Blue 3?

The CAS number of Basic Blue 3 is 55840-82-9.

What are the molecular formula and molecular weight of Basic Blue 3?

Basic Blue 3 has molecular formula C20H26ClN3O and molecular weight 359.89300 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Basic Blue 3 (CAS 55840-82-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1328969-8 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.