4-Hydroxyazobenzene
Preliminary reference disclaimer
This preliminary safety reference is generated from structured MolGraph catalog fields and public reference-style data. It is not a supplier-issued Safety Data Sheet and should not be used as a substitute for supplier-issued documentation, workplace safety review, transport classification, or regulatory compliance decisions. For supplier SDS or COA, submit a documentation request through MolGraph.
Preliminary safety reference
Available
Supplier-issued SDS
Available by request
COA
Available by RFQ / lot confirmation
Transport classification
Requires shipment review
CAS Number
1689-82-3
Chemical name
4-Hydroxyazobenzene
Molecular formula
C12H10N2O
Molecular weight
198.22 g/mol
Synonyms
4-Phenylazophenol; 4-(Phenylazo)phenol; p-Phenylazophenol; p-Hydroxyazobenzene; C.I. Solvent Yellow 7; Pirocard Green 491; Organol Yellow AP; Phenol, p-(phenylazo)-; p-Benzeneazophenol; Azobenzene, 4-hydroxy-; Zlut rozpoustedlova 7; CI Solvent Yellow 7
InChIKey
BEYOBVMPDRKTNR-UHFFFAOYSA-N
PubChem CID
15529
Signal word
Warning
Catalog reference cue; confirm supplier documentation before use.
Hazard statements
H302, H315, H319, H335, H411
Catalog reference cue; confirm supplier documentation before use.
Melting Point
155–157 °C
Catalog reference value; verify against supplier SDS before use.
pKa
8.2
Catalog reference value; verify against supplier SDS before use.
XLogP
3.7
Catalog reference value; verify against supplier SDS before use.
Shipment review
Shipment details require review before fulfillment.
Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.