Ammonium hydroxide

CAS Registry Number®

1336-21-6

CAS Name

Ammonium hydroxide

Molecular Formula

H5NO

Molecular Mass

35.05

Cite this Page

Ammonium hydroxide.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=1336-21-6 (retrieved 2025-05-12) (CAS RN: 1336-21-6).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Density (1)

    ~0.90 g/cm³ (approx) @ Temp: 25 °C

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

InChI

InChI=1S/H5NO/c1-2/h2H,1H4

InChIKey

InChIKey=AVWWWZOEBBIQQX-UHFFFAOYSA-N

SMILES

[NH4]O

Canonical SMILES

O[NH4]

Other Names for this Substance

  • Ammonium hydroxide ((NH4)(OH))
  • Ammonium hydroxide
  • Aqua ammonia
  • Ammonia, aqua
  • Ammonia water

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Deleted or Replaced CAS Registry Numbers

16393-49-0, 125888-87-1, 132103-60-7, 178115-93-0, 1252662-61-5, 1269620-59-8, 1313584-68-7, 1398052-85-1

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