556890
1-(3-Sulfophenyl)-3-methyl-2-pyrazolin-5-one
95%
Synonym(s):
1-(3-Sulfophenyl)-3-methyl-5-pyrazolone, 3-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid
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About This Item
Empirical Formula (Hill Notation):
C10H10N2O4S
CAS Number:
Molecular Weight:
254.26
UNSPSC Code:
12352100
PubChem Substance ID:
EC Number:
204-303-0
MDL number:
InChI key
VEMGKBUHUTYHHA-UHFFFAOYSA-N
InChI
1S/C10H10N2O4S/c1-7-5-10(13)12(11-7)8-3-2-4-9(6-8)17(14,15)16/h2-4,6H,5H2,1H3,(H,14,15,16)
SMILES string
CC1=NN(C(=O)C1)c2cccc(c2)S(O)(=O)=O
assay
95%
mp
335 °C (lit.)
Application
1-(3-Sulfophenyl)-3-methyl-5-pyrazolone [1-(3′-sulfophenyl)-3-methyl-5-pyrazolone] may be used to synthesize α-Pigment Yellow 191.
signalword
Warning
hcodes
Hazard Classifications
Skin Sens. 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
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The first crystal structures of industrial laked yellow pigments determined by X-ray powder diffraction.
Martin U Schmidt et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 15(2), 338-341 (2008-12-02)
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