Hydrogen

CAS Registry Number®

1333-74-0
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CAS Name

Hydrogen

Molecular Formula

H2

Molecular Mass

2.02

Cite this Page

Hydrogen.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?ref=1333-74-0 (retrieved 2024-03-05) (CAS RN: 1333-74-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    -252.77 °C
  • Melting Point (2)

    -259.2 °C
  • Density (3)

    0.07631 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/H2/h1H

InChIKey

InChIKey=UFHFLCQGNIYNRP-UHFFFAOYSA-N

SMILES

[H][H]

Canonical SMILES

[H][H]

Other Names for this Substance

  • Hydrogen
  • Orthohydrogen
  • Parahydrogen
  • Hydrogen (H2)
  • Hydrogen molecule

Deleted or Replaced CAS Registry Numbers

725200-57-7

CAS INSIGHTSTM
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