Nile Blue A

CAS Registry Number®

3625-57-8

CAS Name

Nile Blue A

Molecular Formula

C20H20N3O.1/2O4S

Molecular Mass

732.85

Cite this Page

Nile Blue A.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=3625-57-8 (retrieved 2025-05-09) (CAS RN: 3625-57-8).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C20H20N3O.H2O4S/c1-3-23(4-2)13-9-10-17-18(11-13)24-19-12-16(21)14-7-5-6-8-15(14)20(19)22-17;1-5(2,3)4/h5-12H,3-4,21H2,1-2H3;(H2,1,2,3,4)/q+1;/p-2

InChIKey

InChIKey=MMYKGGIXVBGGSZ-UHFFFAOYSA-L

SMILES

S(=O)(=O)([O-])[O-].NC1=C2C(=C3C([O+]=C4C(=N3)C=CC(N(CC)CC)=C4)=C1)C=CC=C2

Canonical SMILES

O=S(=O)([O-])[O-].N=1C=2C=CC(=CC2[O+]=C3C=C(N)C=4C=CC=CC4C13)N(CC)CC

Other Names for this Substance

  • Benzo[a]phenoxazin-7-ium, 5-amino-9-(diethylamino)-, sulfate (2:1)
  • Nile blue sulfate
  • Bis[5-amino-9-(diethylamino)benzo[a]phenazoxonium] sulfate
  • Nile Blue A sulfate
  • 5-Amino-9-(diethylamino)benzo[a]phenoxazinium sulfate

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Deleted or Replaced CAS Registry Numbers

6276-87-5

CAS INSIGHTSTM
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