ChemicalBook > CAS DataBase List > 1,8-NAPHTHOSULTAM

1,8-NAPHTHOSULTAM

Product Name: 1,8-NAPHTHOSULTAM
CAS No.: 603-72-5
Chemical Name: 1,8-NAPHTHOSULTAM
Synonyms: 1,8-NAPHTHOSULTAM;1,8-Naphthasultam;1,8-Naphthosultam,98%;1,8-NAPHTHALENESULTAM;2H-naphth[1,8-cd]isothiazole 1,1-dioxide;2H-naphtho[1,8-cd]isothiazole 1,1-dioxide;8-Aminonaphthalene-1-sulfonic acid sultam;1,2-Napthaquinone-4-SulphonicacidSodiumSalt
CBNumber: CB9417243
Molecular Formula: C10H7NO2S
Formula Weight: 205.23
MOL File: 603-72-5.mol

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1,8-NAPHTHOSULTAM Property

Melting point:: 173-175 °C(lit.)
Boiling point:: 442.2±28.0 °C(Predicted)
Density: 1.3178 (rough estimate)
refractive index: 1.5250 (estimate)
storage temp.: Sealed in dry,Room Temperature

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Safety

Safety Statements: 22-24/25
WGK Germany: 3

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

AK Scientific

Product number: 4122CA
Product name: 2H-Naphth(1,8-cd)isothiazole1,1-dioxide
Packaging: 250mg
Price: $132
Updated: 2021/12/16

AK Scientific

Product number: 4122CA
Product name: 2H-Naphth(1,8-cd)isothiazole1,1-dioxide
Packaging: 2.5g
Price: $174
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0017457
Product name: 1,8-NAPHTHALENESULTAM
Purity: 95.00%
Packaging: 5G
Price: $831.95
Updated: 2021/12/16

Labseeker

Product number: SC-69698
Product name: 1,8-Naphthosultam
Purity: 95
Packaging: 50g
Price: $1583
Updated: 2021/12/16

AHH

Product number: MT-19281
Product name: 1,8-Naphthalenesultam
Purity: 97%
Packaging: 250g
Price: $330
Updated: 2021/12/16

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1,8-NAPHTHOSULTAM Chemical Properties,Usage,Production

Chemical Properties

grey-green to brown-grey or grey powder

Synthesis

16619-06-0

603-72-5

General procedure for the synthesis of 1,8-naphthalenesulfonolactam from 1,8-naphthalenesulfonic acid potassium salt (CAS: 16619-06-0): 5 g of 1,8-naphthalenesulfonic acid potassium salt was pulverized and placed in a flask containing 15 g of POCl3. After installation of a reflux condenser, the reaction system is heated in an oil bath to 130°C. When the temperature reaches 100°C, HCl gas starts to be released, which has to be discharged through the flue. To facilitate the reaction, the flask was shaken periodically. After the release of irritating gases stops, the heating is continued until the reaction mixture no longer produces dye in the diazotization and color development test, usually for a reaction time of 3 hours. Due to the slurry-like consistency of the reaction mixture, caution is required to remove excess POCl3. Subsequently, the reaction mixture is quenched by slowly pouring it into an ice bath. The gray solid product was collected by diafiltration and washed repeatedly with water to remove most of the phosphoric acid. The crude product was dried and purified by recrystallization with benzene. Product melting point: 175-180°C; 1H NMR (DMSO-d6, 300 MHz) δ: 8.62 (d, 1H, J = 8.0 Hz), 8.12 (d, 1H, J = 8.0 Hz), 7.75-7.74 (m, 1H), 7.61 (d, 1H, J = 8.0 Hz), 7.32 (dd, 1H, J = 7.5, 6.7 Hz), 6.7 Hz), 6.7 Hz). 6.7 Hz), 6.90 (d, 1H, J = 6.8 Hz), 5.36 (s, 1H); MS (EI): m/z 206 (M++H).

References

[1] Bioorganic and Medicinal Chemistry, 2012, vol. 20, # 2, p. 789 - 800
[2] Tetrahedron, 2014, vol. 70, # 8, p. 1659 - 1690

1,8-NAPHTHOSULTAM Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 1,8-NAPHTHOSULTAM manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: 1,8-Naphthosultam 603-72-5
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 2000tons
Release date: 2025-08-15

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