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Basic Information
CAS No.: 599-71-3
Name: BENZENESULFOHYDROXAMIC ACID
Molecular Structure:
Molecular Structure of 599-71-3 (BENZENESULFOHYDROXAMIC ACID)
Formula: C6H7 N O3 S
Molecular Weight: 173.192
Synonyms: Benzenesulfohydroxamicacid; Hydroxylamine, N-(phenylsulfonyl)-; N-(Phenylsulfonyl)hydroxylamine;N-Hydroxybenzenesulfonamide; NSC 45357; Piloty's acid
EINECS: 209-973-8
Density: 1.431 g/cm3
Melting Point: 122-125 ºC
Boiling Point: 351.5 ºC at 760 mmHg
Flash Point: 166.4 ºC
Appearance: white granular crystalline powder
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: Slightly toxic by subcutaneous route. When heated to decomposition it emits toxic vapors of NOx and SOx.
PSA: 74.78000
LogP: 1.82580
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Chemistry

IUPAC Name: N-hydroxybenzenesulfonamide
Synonyms: Benzenesulfohydroxamic acid ; Benzenesulfhydroxamic acid ; Benzenesulfohyd ; Benzenesulfonamide, N-hydroxy- ; Benzenesulphonohydroxamic acid ; Benzsulfohydroxamic acid
Product Categories: Hydroxylamines;Hydroxylamines (N-Substituted)
CAS NO: 599-71-3
Molecular Formula of Benzsulfohydroxamic acid (CAS NO.599-71-3) : C6H7NO3S
Molecular Weight: of Benzsulfohydroxamic acid (CAS NO.599-71-3) : 173.19
Molecular Structure of Benzsulfohydroxamic acid (CAS NO.599-71-3) :
EINECS: 209-973-8
Mol File: 599-71-3.mol
Merck 7426
Index of Refraction: 1.588
Surface Tension: 54.3 dyne/cm
Density: 1.431 g/cm3
Flash Point: 166.4 °C
Enthalpy of Vaporization: 62.92 kJ/mol
Boiling Point: 351.5 °C at 760 mmHg
Vapour Pressure: 1.52E-05 mmHg at 25°C
Melting point: 122-125 °C
Storage temp. 2-8°C
Appearance:white granular crystalline powder

Uses

 Benzsulfohydroxamic acid (CAS NO.599-71-3) is used as intermediate in organic synthesis .

Toxicity Data With Reference

1.    

orl-rat LD:>500 mg/kg

     NCNSA6    National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. 5 (1953),42.
2.    

scu-mus LDLo:1 g/kg

     AIPTAK    Archives Internationales de Pharmacodynamie et de Therapie. 12 (1904),447.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Slightly toxic by subcutaneous route. When heated to decomposition it emits toxic vapors of NOx and SOx.
Hazard Codes IrritantXi
Risk Statements 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements 22-24/25
S22:Do not breathe dust. 
S24/25:Avoid contact with skin and eyes.
WGK Germany 3
RTECS MX9350000