3H-Indol-3-one, 5-bromo-2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-

Also known as: 5-Bromoindigo, Bromindigo R, (2Z)-5-bromo-2-(3-oxo-1H-indol-2-ylidene)-1H-indol-3-one, 5-Brom-1H,1'H-[2,2']biindolyliden-3,3'-dion, 5-Bromo-Δ2,2'(3H,3'H)-bi[1H-indole]-3,3'-dione, 5-Bromo-Δ2,2'-bi(2H-indole)-3,3'(1H,1'H)-dione, 5-bromo-1H,1'H-[2,2']biindolylidene-3,3'-dione, C.I. 73055, C.I. Vat Blue 3, Indigo RN, MDW, Yamada Brom Indigo R

3H-Indol-3-one, 5-bromo-2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- (CAS 6492-73-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C16H9BrN2O2 and a molecular weight of 341.15900 g/mol. Key properties include a boiling point of 447.4ºC at 760mmHg, a density of 1.695g/cm3 and a flash point of 224.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

6492-73-5

Jingsj CID

J-1009647-7

Molecular Formula

C₁₆H₉BrN₂O₂

Molecular Weight

341.15900 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026