538582

Sigma-Aldrich

2,4-Dihydroxybenzoic acid hydrazide

97%

Linear Formula:
(OH)2C6H3CONHNH2
CAS Number:
Molecular Weight:
168.15
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

mp

247-250 °C (lit.)

SMILES string

NNC(=O)c1ccc(O)cc1O

InChI

1S/C7H8N2O3/c8-9-7(12)5-2-1-4(10)3-6(5)11/h1-3,10-11H,8H2,(H,9,12)

InChI key

GOPUHTXVZGIOHN-UHFFFAOYSA-N

Related Categories

General description

2,4-Dihydroxybenzoic acid hydrazide is a phenolic hydrazide. 2,4-Dihydroxybenzohydrazide can be prepared by employing ethyl 2,4-dihydroxybenzoate and hydrazine hydrate as starting reagent.

Application

2,4-Dihydroxybenzoic acid hydrazide may be used in the synthesis of:
  • 2,4-dihydroxy-N′-(4-methoxybenzylidene)benzohydrazide
  • 2,4-dihydroxy-N′-(2-hydroxy-4-methoxybenzylidene)benzohydrazide
  • (E)-2,4-dihydroxy-N′-(2-hydroxy-3-methoxy-5-nitrobenzylidene) benzohydrazide dihydrate
  • [N′-(5-chloro-2-oxidobenzyl-κO)-2,4-dihydroxybenzohydrazidato-κ2N′,O](methanol-κO)dioxidomolybdenum(VI)–4,4′-bipyridine
  • (E)-N′-(3,4-dimethoxybenzylidene)-2,4-dihydroxybenzohydrazide methanol solvate

Packaging

25 g in glass bottle

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
2, 4-Dihydroxy-N'-(4-methoxybenzylidene) benzohydrazide.
Diao YP, et al.
Acta Crystallographica Section E, Structure Reports Online, 64(2), o470-o470 (2008)
(E)-N'-(3, 4-Dimethoxybenzylidene)-2, 4-dihydroxybenzohydrazide methanol solvate.
Zhang QL, et al.
Acta Crystallographica Section E, Structure Reports Online, 65(10), o2392-o2393 (2009)
[N'-(5-Chloro-2-oxidobenzyl-?O)-2, 4-dihydroxybenzohydrazidato-?2N',O](methanol-?O) dioxidomolybdenum (VI)?4, 4'-bipyridine (1/1).
Ngan NK, et al.
Acta Crystallographica Section E, Structure Reports Online, 67(6), m747-m747 (2011)
2, 4-Dihydroxy-N'-(2-hydroxy-4-methoxybenzylidene) benzohydrazide.
Han YY and Zhao QR.
Acta Crystallographica Section E, Structure Reports Online, 66(5), o1041-o1041 (2010)
Synthesis of 2, 4-Dihydroxybenzohydrazide.
Camber B and Dziewiatkowski DD.
Journal of the American Chemical Society, 73(8), 4021-4021 (1951)

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