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538582

Sigma-Aldrich

2,4-Dihydroxybenzoic acid hydrazide

97%

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About This Item

Linear Formula:
(OH)2C6H3CONHNH2
CAS Number:
13221-86-8
Molecular Weight:
168.15
MDL number:
MFCD00017053
UNSPSC Code:
12352100
PubChem Substance ID:
24878343
NACRES:
NA.22

Assay

97%

mp

247-250 °C (lit.)

functional group

amine
hydrazine

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

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCT5895
MKCR6959
MKCH4147
MKCC4699
MKBD6637

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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)
Synthesis of 2, 4-Dihydroxybenzohydrazide.
Camber B and Dziewiatkowski DD.
Journal of the American Chemical Society, 73(8), 4021-4021 (1951)
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)
[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)
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