Molecular structure of 4-Chloro-5-sulphamoylbenzoic acid (CAS NO.1205-30-7) is:

Product Name: 4-Chloro-5-sulphamoylbenzoic acid
CAS Registry Number: 1205-30-7
IUPAC Name: 4-chloro-3-sulfamoylbenzoic acid
Molecular Weight: 235.64484 [g/mol]
Molecular Formula: C₇H₆ClNO₄S
XLogP3-AA: 0.6
H-Bond Donor: 2
H-Bond Acceptor: 5 
EINECS: 214-882-1
Melting Point: 256-258 °C(lit.)
Surface Tension: 68.2 dyne/cm
Density: 1.649 g/cm³
Flash Point: 257.6 °C
Enthalpy of Vaporization: 81.23 kJ/mol
Boiling Point: 502.4 °C at 760 mmHg
Vapour Pressure: 6.5E-11 mmHg at 25°C
Product Categories: BenzoicAcidDerivative;Organic acids;API intermediates;Amines;Aromatics;Sulfur & Selenium Compounds;Organic Building Blocks;Sulfonamides/Sulfinamides;Sulfur Compounds

 4-Chloro-5-sulphamoylbenzoic acid (CAS NO.1205-30-7) is used in pharmaceutical synthesis.

Safty information about 4-Chloro-5-sulphamoylbenzoic acid (CAS NO.1205-30-7) is:
Hazard Codes: Xi
Risk Statements: 36/37/38
36/37/38:  Irritating to eyes, respiratory system and skin 
Safety Statements: 26-37/39
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
37/39:  Wear suitable gloves and eye/face protection 
WGK Germany: 3
RTECS: DG5642600

 4-Chloro-5-sulphamoylbenzoic acid , its cas register number is 1205-30-7. It also can be called Sulfamido-3-chlorobenzoic acid ; 4-Chloro-3-sulfamoylbenzoic acid ; Benzoic acid, 3-(aminosulfonyl)-4-chloro- ; Benzoic acid, 4-chloro-3-sulfamoyl- .