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4-p-sulfophenylazo-1-naphtholmonosodiumsalt

tropaeolin 000 no. 1

CAS: 523-44-4

Molecular Formula: C16H11N2NaO4S

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4-p-sulfophenylazo-1-naphtholmonosodiumsalt - Names and Identifiers

Name tropaeolin 000 no. 1
Synonyms C.I. 150
Orange I
1333orange
C.I. 14600
a.f.orangeno.1
C.I. Acid Orange 20
tropaeolin 000 no. 1
alpha-Naphthol orange
C.I. Acid Orange 20 monosodium salt
C.I. Acid Orange 20, monosodium salt
C.I. Acid Orange 20, monosodium salt (8CI)
4-p-sulfophenylazo-1-naphtholmonosodiumsalt
4-p-sulphophenylazo-1-naphthol,monosodiumsalt
sodium 4-[(E)-(4-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate
4-[(4-hydroxy-1-naphthalenyl)azo]-benzenesulfonicacimonosodiumsalt
4-((4-hydroxy-1-naphthalenyl)azo)-benzenesulfonicacimonosodiumsalt
4-((4-hydroxy-1-naphthalenyl)azo)benzenesulfonicacid,monosodiumsalt
4-((4-hydroxy-1-naphthalenyl)azo)benzenesulphonicacid,monosodiumsalt
sodium 4-[(2E)-2-(4-oxonaphthalen-1(4H)-ylidene)hydrazinyl]benzenesulfonate
CAS 523-44-4
EINECS 208-346-6
InChI InChI=1/C16H12N2O4S.Na/c19-16-10-9-15(13-3-1-2-4-14(13)16)18-17-11-5-7-12(8-6-11)23(20,21)22;/h1-10,19H,(H,20,21,22);/q;+1/p-1/b18-17+

4-p-sulfophenylazo-1-naphtholmonosodiumsalt - Physico-chemical Properties

Molecular FormulaC16H11N2NaO4S
Molar Mass350.32
Melting Point260 °C (decomp)
Solubility Soluble in water and ethanol.
AppearanceBrown powder
ColorRed to Very Dark Red
Merck14,6857
BRN3826844
Storage ConditionInert atmosphere,Room Temperature
MDLMFCD00021510

4-p-sulfophenylazo-1-naphtholmonosodiumsalt - Risk and Safety

Safety DescriptionS22 - Do not breathe dust.
S24/25 - Avoid contact with skin and eyes.
WGK Germany3
RTECSDB7085000
HS Code32041200
ToxicityLD50 intraperitoneal in rat: 1gm/kg

4-p-sulfophenylazo-1-naphtholmonosodiumsalt - Reference

Reference
Show more
1. Chen Lin, Wen Jiaxin, Lei Yi, et al. Simultaneous and rapid determination of 20 illegally added synthetic pigments in cured meat products by high performance liquid chromatography [J]. Chinese Journal of analysis and testing, 2015, 034(009):1008-1013.

4-p-sulfophenylazo-1-naphtholmonosodiumsalt - Reference Information

color index 14600
(IARC) carcinogen classification 3 (Vol. 8, Sup 7) 1987
EPA chemical information Information provided by: ofmpub.epa.gov (external link)
application orange I can be used as an acid-base indicator, pH 7.6 (brown yellow)-8.9 (purple red), and can also be used as protein staining.
use orange I can be used as acid-base indicator, pH 7.6 (brown yellow)-8.9 (purple red)
toxic substance data information provided by: pubchem.ncbi.nlm.nih.gov (external link)
Last Update：2024-04-09 20:52:54
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4-p-sulfophenylazo-1-naphtholmonosodiumsalt
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