Chemistry:Lacmoid

From HandWiki

Lacmoid is a chemical compound with the formula C
24
H
16
N
2
O
6
.[1] It is synthesized by reacting sodium nitrite (NaNO2) with resorcinol. It is a pH-sensitive dye which is turned red by acids and is used as a pH indicator under the name of lacmoid. It is usually a black-violet solid.[2]

References

  1. CID 3940532 from PubChem
  2. Traub, M. C.; Hock, C. (1884). "Ueber ein Lakmoid". Berichte der Deutschen Chemischen Gesellschaft 17 (2): 2615–2617. doi:10.1002/cber.188401702192.