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303585

Sigma-Aldrich

2-Amino-5-nitrophenol

Synonym(s):

2-Hydroxy-4-nitroaniline, 3-Hydroxy-4-aminonitrobenzene, 3-Nitro-6-aminophenol, 5-Nitro-2-amino-1-hydroxybenzene, 5-Nitro-2-aminophenol, NSC 7087

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About This Item

Linear Formula:
H2NC6H3(NO2)OH
CAS Number:
121-88-0
Molecular Weight:
154.12
Beilstein/REAXYS Number:
972974
EC Number:
204-503-8
MDL number:
MFCD00007692
UNSPSC Code:
12352100
PubChem Substance ID:
24858130
NACRES:
NA.22

form

solid

Quality Level

100

mp

198-202 °C (dec.) (lit.)

SMILES string

Nc1ccc(cc1O)[N+]([O-])=O

InChI

1S/C6H6N2O3/c7-5-2-1-4(8(10)11)3-6(5)9/h1-3,9H,7H2

InChI key

DOPJTDJKZNWLRB-UHFFFAOYSA-N

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Application

2-Amino-5-nitrophenol was used:
  • as starting material in the synthesis of series of (Z)-2-(substituted aryl)-N-(3-oxo-4-(substituted carbamothioyl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-7-yl) hydrazine carboxamides
  • as semipermanent (nonoxidative) hair colorant and as toner in permanent (oxidative) hair dye products
  • in synthesis of series of 7-benzylamino-2H-1,4-benzoxazin-3(4H)-ones, anticonvulsant agents
Reactant for:
  • Diazotation and coupling reactions
  • Preparation of biologically and pharmacologically active molecules

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Nadeem Siddiqui et al.
Archiv der Pharmazie, 343(11-12), 657-663 (2010-11-27)
A series of (Z)-2-(substituted aryl)-N-(3-oxo-4-(substituted carbamothioyl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-7-yl) hydrazine carboxamides (6a-r) was synthesized using 2-amino-5-nitrophenol as a starting material. All the synthesized compounds possessed two hydrogen-bonding domains and their effect on the activity was studied thereof. The anticonvulsant activity was assessed by
Christina L Burnett et al.
International journal of toxicology, 28(6 Suppl 2), 217S-251S (2010-01-30)
2-Amino-3-nitrophenol, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, 4-amino-3-nitrophenol, 4-amino-2-nitrophenol, 2-amino-4-nitrophenol sulfate, 3-nitro-p-hydroxyethylaminophenol, and 4-hydroxypropylamino-3-nitrophenol are substituted aromatic compounds used as semipermanent (nonoxidative) hair colorants and as toners in permanent (oxidative) hair dye products. All ingredients in this group except 2-amino-4-nitrophenol sulfate, 2-amino-5-nitrophenol, and 4-amino-2-nitrophenol
F Chen et al.
Cancer letters, 126(1), 67-74 (1998-05-01)
Two hair dye components, carcinogenic 4-nitro-2-aminophenol and 5-nitro-2-aminophenol, induced Cu(II)-dependent DNA cleavage frequently at thymine and guanine residues in DNA fragments obtained from the c-Ha-ras-1 protooncogene. When the p53 tumor suppressor gene was used, 4-nitro-2-aminophenol caused Cu(II)-dependent piperidine-labile sites at
2-Amino-5-nitrophenol.
IARC monographs on the evaluation of carcinogenic risks to humans, 57, 177-184 (1993-01-01)
Zhong-Tai Piao et al.
European journal of medicinal chemistry, 43(6), 1216-1221 (2007-10-24)
A series of 7-benzylamino-2H-1,4-benzoxazin-3(4H)-ones were synthesized using 2-amino-5-nitrophenol as a starting material. Their anticonvulsant activities were evaluated by the maximal electroshock test (MES test) and their neurotoxicity was evaluated by the rotarod neurotoxicity test (Tox.). The MES test showed that
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