2-Naphthalenesulfonic acid, 4-hydroxy-

HCID 77389
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Basic information

CAS
3771-14-0
Standard SMILES
O=S(=O)(O)c1cc(O)c2ccccc2c1
InChIKey
HKWPUUYEGGDLJF-UHFFFAOYSA-N
Molecular formula
C10H8O4S
Average molar mass
224.23 g/mol
Monoisotopic mass
224.01432991

Names & identifiers

Preferred name
2-Naphthalenesulfonic acid, 4-hydroxy-
IUPAC
4-hydroxynaphthalene-2-sulfonic acid
English name
4-hydroxynaphthalene-2-sulphonic acid
Molecular formula
C10H8O4S
Molecular weight
224.23

Names & synonyms

3771-14-02-Naphthalenesulfonic acid, 4-hydroxy-1-Naphthol-3-sulfonic acid1-Hydroxy-3-naphthalenesulfonic acid4-Hydroxy-2-naphthalenesulfonic acidEINECS 223-212-7NSC 37039DTXSID2063181RefChem:88498DTXCID10393974-hydroxynaphthalene-2-sulfonic acid4-Hydroxynaphthalene-2-sulphonic acid
Show more names
1-Naphthol, 3-sulfo-MFCD00021505NSC370392-Naphthalenesulfonicacid, 4-hydroxy-SCHEMBL589899SCHEMBL1193191SCHEMBL1413187SCHEMBL1413189

Database identifiers

CAS
3771-14-0
PubChem CID
77389
DTXSID
DTXSID2063181
EC Number
223-212-7
Nikkaji
J172.993D

Properties

Computed structural properties

XLogP
-0.2
Topological polar surface area
83 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
4
Rotatable bonds
1
Heavy atoms
15

Physicochemical properties

Density
1.549 · 1.549±0.06 g/cm3(Predicted)
storage temp.
2 · 2-8°C, stored under nitrogen, away from moisture
pka
0.15 · 0.15±0.40(Predicted)
Appearance
White to off-white Solid
EPA Substance Registry System
2 · 2-Naphthalenesulfonic acid, 4-hydroxy- (3771-14-0)
Symbol(GHS)
5 · GHS05,GHS07

Safety & regulation

Safety data

tsca
TSCA listed
Signal word
Danger
Symbol(GHS)
GHS05,GHS07
Hazard statements
H302-H315-H314
Precautionary statements
P260-P264-P270-P280-P301+P330+P331-P302+P352-P303+P361+P353-P304+P340-P305+P351+P338-P310-P332+P313-P362-P405-P501

Chemistry & industry

Uses & manufacturing

General Manufacturing Information2-Naphthalenesulfonic acid, 4-hydroxy-: INACTIVE

Applications

Uses1-Hydroxynaphthalene-3-sulfonic acid is used as a coupling component for the production of direct dyes.

Preparation methods · 1 item

Preparation1-Aminonaphthalene-3-sulfonic acid is heated with dilute sulfuric acid by using high-pressure steam to maintain a pressure of 1 MPa for 20 h. After cooling, screening, and adding salt to the hot liquor, the sodium salt crystallizes on cooling and is isolated in 80 % yield.

Upstream & downstream products

Suppliers8 total

烟台凯博医药科技有限公司0535-6385396 · [email protected]
韶远科技（上海）有限公司021-50795510 4000665055 · [email protected]
陕西缔都医药化工有限公司+86-029-81138252 +86-173 9270 1263 · [email protected]
HANGZHOU LEAP CHEM CO., LTD.+86-571-87711850 +86-15355479329 · [email protected]
Alfa Chemistry+1-5166625404 · [email protected]

Related reactions

1 records
New reaction record

Compound notes

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