CAS 84-87-7 1-Naphthol-4-sulfonic acid (HCID 6791)

Overview

used in reaction electrophoresis; RN given refers to parent cpd; structure in first source

Names & identifiers

Preferred name: 1-Naphthol-4-sulfonic acid
IUPAC: 4-hydroxynaphthalene-1-sulfonic acid
English name: 1-Naphthol-4-sulfonic acid
Molecular formula: C10H8O4S
Molecular weight: 224.23

Names & synonyms

1-NAPHTHOL-4-SULFONIC ACID84-87-74-Hydroxy-1-naphthalenesulfonic acid1-Naphthalenesulfonic acid, 4-hydroxy-Nevile and Winther's acid6W41U3C9YNNSC-9587DTXSID2058910RefChem:4350251,4-naphthol sulfonic acidDTXCID60483851-hydroxy-4-naphthalenesulfonic acod

Show more names

Niven acidNeville acidNevile-Winther acidNevile-Winthers acid1-Naphthol-4-sulfoniHIGH-PURITY N.W. ACIDNevileandwinther’sacidNeville and winther acidNaphthol-4-sulfonic acid

201-568-44-hydroxynaphthalene-1-sulfonic acidNW Acid1,4-Oxy AcidNeville-winther acid1-Naphtho-4-sulfonic acidMFCD000653244-Hydroxynaphthalene-1-sulphonic acid

Database identifiers

CAS: 84-87-7
PubChem CID: 6791
DTXSID: DTXSID2058910
ChEMBL: CHEMBL2312197
UNII: 6W41U3C9YN
EC Number: 201-568-4
Nikkaji: J4.903D

Properties

Computed structural properties

XLogP: 2.1
Topological polar surface area: 83 Å²
Hydrogen bond donors: 2
Hydrogen bond acceptors: 4
Rotatable bonds: 1
Heavy atoms: 15
Formal charge: 0
Complexity: 319

Physicochemical properties

Melting point: 170 ℃ · 170℃
Boiling point: 335.63 °C · 335.63°C (rough estimate)
Density: 1.4643 · 1.4643 (rough estimate)
refractive index: 1.704 · 1.7040 (estimate)
storage temp.: 2 · 2-8°C, stored under nitrogen, away from moisture
pka: 0.73 · 0.73±0.40(Predicted)
form: solid
color: white to yellow
InChI: InChI=1S/C10H8O4S/c11-9-5-6-10(15(12,13)14)8-4-2-1-3-7(8)9/h1-6,11H,(H,12,13,14)
InChIKey: HGWQOFDAUWCQDA-UHFFFAOYSA-N
SMILES: C1(S(O)(=O)=O)=C2C(C=CC=C2)=C(O)C=C1
CAS DataBase Reference: 84 · 84-87-7(CAS DataBase Reference)
FDA UNII: 6 W41U3C9YN · 6W41U3C9YN
EPA Substance Registry System: 1 · 1-Naphthalenesulfonic acid, 4-hydroxy- (84-87-7)
Symbol(GHS): 7 · GHS07
Signal word: Warning
Hazard statements: 302 · H302-H315-H319-H335
Precautionary statements: 261 · P261-P305+P351+P338
TSCA: TSCA listed
REACH Registrations: Active

Safety & regulation

GHS classification

GHS Classification · 5 items

This chemical does not meet GHS hazard criteria for 1.6% (2 of 124) of reports.

Warning

H315 (97.6%): Causes skin irritation [Warning Skin corrosion/irritation]

P264, P264+P265, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, and P362+P364 (click each P-code to see the statement)

Aggregated GHS information provided per 124 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory InformationStatus: Active Update: 14-07-2017 https://echa.europa.eu/registration-dossier/-/registered-dossier/10797

Hazard Classes and CategoriesSkin Irrit. 2 (97.6%)

Safety data

tsca: TSCA listed
Signal word: Warning
Symbol(GHS): GHS07
Hazard statements: H302-H315-H319-H335
REACH Registrations: Active
Precautionary statements: P261-P305+P351+P338

Chemistry & industry

Uses & manufacturing

General Manufacturing Information1-Naphthalenesulfonic acid, 4-hydroxy-: ACTIVE

Applications

Uses1-Naphthol-4-sulfonic acid is used as an intermediate of azo dyes to prepare dyes such as direct copper blue BR and 2R, direct violet RB, acid red B and acid medium jujube red B

Preparation methods · 1 item

PreparationAfter drying under vacuum, the resulting filter cake contains 1-naphthol-4-sulphonic acid in a yield of 92% of theory and <0.5% 1-naphthol-2-sulphonic acid and 3% of 1-naphthol-2,4-disulphonic acid based on the weight of 1-naphthol-4-sulphonic acid.

Upstream & downstream products

Upstream raw materials

Sodium bisulfite Naphthionic acid

Downstream products

disodium 3-[[4'-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-1-sulphonate Acid Red 374 sodium 3-[[4-(benzoylethylamino)-2-methylphenyl]azo]-4-hydroxynaphthalene-1-sulphonate Direct Blue 151 C.I. 14720 sodium 4-hydroxy-3-[[3-(phenylsulphamoyl)-p-tolyl]azo]naphthalenesulphonate 3-[(5-Chloro-2-hydroxy-3-sulfophenyl)azo]-4-hydroxy-1-naphthalenesulfonic acid disodium salt 5-Amino-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfonaphthalen-2-yl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt disodium 3-[[4'-[[6-amino-1-hydroxy-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-1-sulphonate 4,4'-[(2-Methyl-5-sodiosulfo-1,3-phenylene)bis[azo(4,6-diamino-3,1-phenylene)azo]]bis[naphthalene-1-sulfonic acid sodium] salt Benzoazurine Brilliant purpurin R

Suppliers100 total

湖北永阔科技有限公司027-59223108 15972152991 · [email protected]

Shandong chuangyingchemical Co., Ltd.18853181302 · [email protected]

宁波君龙新材料有限公司0574 88552216 19032109277 · [email protected]

湖北万得化工有限公司15377098680 15377098680 · [email protected]

上海麦克林生化科技股份有限公司021-50706066 15221275939 · [email protected]

Related reactions

2 records

New reaction record

HRID 114483As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)

HRID 1679094As productuspto-grants-1978_03

Compound notes

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Basic information