229350
Naphthol AS
99%
Synonym(s):
3-Hydroxy-2-naphthoic acid anilide
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About This Item
Empirical Formula (Hill Notation):
C17H13NO2
CAS Number:
Molecular Weight:
263.29
UNSPSC Code:
12171500
PubChem Substance ID:
EC Number:
202-188-1
MDL number:
Colour Index Number:
37505
Beilstein/REAXYS Number:
1842678
SMILES string
Oc1cc2ccccc2cc1C(=O)Nc3ccccc3
assay
99%
λmax
394 nm
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Regulatory Information
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R Hayakawa et al.
Contact dermatitis, 13(1), 20-25 (1985-07-01)
Naphthol AS is a coupling agent of cotton dyeing. 2 elderly women with hyperpigmentation of the neck and limbs are described. Both felt itching on the neck, forearms, and lower extremities and noted hyperpigmentation a month later. Both had worn
[Immuno and enzyme histochemical demonstration of granulocytes--assay of a morphometric evaluation].
H Redl et al.
Microscopica acta, 86(3), 207-214 (1982-09-01)
Using the naphthol AS-D-chloroacetate esterase method and the indirect immunoperoxidase technique we tried to stain selectively granulocytes in the lung and in the liver. For the immuno technique we used an antibody raised in rabbits against dog granulocytes, which were
I Katayama et al.
Acta pathologica japonica, 33(2), 381-393 (1983-03-01)
Currently used methods for naphthol AS-D chloroacetate (NASDCA) esterase reactions can be divided into 3 groups according to the coupler used, i.e., fast garnet GBC, pararosanilin, and new fuchsin. These 3 groups were systematically modified with regard to modes of
U Wäspi et al.
European journal of biochemistry, 254(1), 32-37 (1998-07-04)
Acquired resistance of rice to Pyricularia oryzae, the causing agent of rice blast, can be induced by inoculation with the non-host pathogen Pseudomonas syringae pv. syringae. We have previously cloned a cDNA and a corresponding gene (Pir7b) whose transcripts accumulate
P E Reid et al.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 31(9), 1142-1144 (1983-09-01)
Histochemical studies of the mechanism of staining of the periodic acid/2,-hydroxy-3-naphthoic acid hydrazide/Fast Black B/saponification/periodic acid-Schiff (PANFOPAS) method indicate that while 2-hydroxy-3-naphthoic acid hydrazide blocks the periodate engendered Schiff reactivity of vicinal diols unassociated with anionic groups, it fails to
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