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121-30-2

Basic Information
CAS No.: 121-30-2
Name: 4-Amino-6-chlorobenzene-1,3-disulfonamide
Article Data: 57
Molecular Structure:
Molecular Structure of 121-30-2 (4-Amino-6-chlorobenzene-1,3-disulfonamide)
Formula: C6H8ClN3O4S2
Molecular Weight: 285.732
Synonyms: m-Benzenedisulfonamide,4-amino-6-chloro- (8CI);1-Amino-5-chloro-2,4-benzenedisulfonamide;3-Chloro-4,6-disulfamoylaniline;4-Amino-6-chloro-1,3-benzenedisulfonamide;4-Amino-6-chloro-m-benzenedisulfonamide;5-Chloro-2,4-disulfamoylaniline;Chloraminophenamide;Chloroaminophenamide;Idorese;NSC 93772;Salamid;Salamide;Salamide (diuretic);Salmid;Su 5683;
EINECS: 204-463-1
Density: 1.768 g/cm3
Melting Point: 254.5 ºC
Boiling Point: 614.4 ºC at 760 mmHg
Flash Point: 325.4 ºC
Appearance: white to almost white crystalline powder
Hazard Symbols: ToxicT
Risk Codes: 23/24-33
Safety: 28-36/37
PSA: 163.10000
LogP: 3.36040
Synthetic route
671-89-6

4-amino-6-chloro-benzene-1,3-disulfonyl chloride

121-30-2

chloraminophenamide

Conditions
ConditionsYield
With ammonia
Conditions
ConditionsYield
With water at 37℃; phosphate buffer (pH: 7.4); or with human serum albumin;
With water at 37℃; Rate constant; phosphate buffer (pH: 7.4); or with human serum albumin;
Conditions
ConditionsYield
With water at 37℃; phosphate buffer (pH: 7.4); or with human serum albumin;
With water at 37℃; Rate constant; phosphate buffer (pH: 7.4); or with human serum albumin;
67-56-1

methanol

58-93-5

6-chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide

A

121-30-2

chloraminophenamide

B

40642-90-8

4-amino-1,3-benzenedisulfonamide

C

4-Amino-6-hydroxy-benzene-1,3-disulfonic acid diamide

D

6-Hydroxy-1,1-dioxo-1,2,3,4-tetrahydro-1λ6-benzo[1,2,4]thiadiazine-7-sulfonic acid amide

E

23141-82-4

3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide

F

32059-40-8

6-methoxy-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide

Conditions
ConditionsYield
In water Product distribution; Mechanism; Irradiation; multistep reaction, photholytic decomposition; also in pure MeOH; effect of O2;
58-93-5

6-chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide

121-30-2

chloraminophenamide

Conditions
ConditionsYield
In methanol for 2160h; Product distribution; Ambient temperature; stability study; further temperature, further solvent;
With sodium hydroxide at 95℃; for 1h;
With sodium hydroxide at 80℃; for 3.5h;
With hydrogenchloride In methanol; propan-1-ol; water for 80h; Kinetics;
58-93-5

6-chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide

A

121-30-2

chloraminophenamide

B

50-00-0

formaldehyd

Conditions
ConditionsYield
In ethanol at 90℃; for 528h; Equilibrium constant; Kinetics; Thermodynamic data; other temperature and time;
133-67-5

trichloromethiazide

121-30-2

chloraminophenamide

Conditions
ConditionsYield
pyrographite hydrolysis of benzothiadiazines;
pyrographite hydrolysis;
With water In ethanol at 35℃; Kinetics; Temperature; Solvent; pH-value; Concentration;
Conditions
ConditionsYield
In water at 60℃; for 336000h; pH=5.2; Substitution;
121-30-2

chloraminophenamide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: water / 37 °C / phosphate buffer (pH: 7.4); or with human serum albumin
2: water / 37 °C / phosphate buffer (pH: 7.4); or with human serum albumin
View Scheme
108-42-9

3-chloro-aniline

121-30-2

chloraminophenamide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: ClSO3H
2: NH3
View Scheme
Multi-step reaction with 2 steps
1: ClSO3H, NaCl / 150 °C
2: NH3
View Scheme
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Chemistry

The Molecular Structure of 1,3-Benzenedisulfonamide,4-amino-6-chloro- (CAS NO.121-30-2):

Empirical Formula: C6H8ClN3O4S2
Molecular Weight: 285.7284
IUPAC Name:  4-Amino-6-chlorobenzene-1,3-disulfonamide 
Product Categories: Phenyls & Phenyl-Het;Phenyls & Phenyl-Het
Nominal Mass: 285 Da
Average Mass: 285.7284 Da
Monoisotopic Mass: 284.964473 Da 
Index of Refraction: 1.666
Molar Refractivity: 60.07 cm3
Molar Volume: 161.5 cm3 
Surface Tension: 81.6 dyne/cm
Density: 1.768 g/cm3
Flash Point: 325.4 °C
Enthalpy of Vaporization: 91.17 kJ/mol
Boiling Point: 614.4 °C at 760 mmHg
Vapour Pressure: 4.98E-15 mmHg at 25 °C 
Melting Point: 254.5 °C 
log P (octanol-water): -0.41
Atmospheric OH Rate Constant: 3.46E-12 cm3/molecule-sec at 25 °C 
InChI: InChI=1/C6H8ClN3O4S2/c7-3-1-4(8)6(16(10,13)14)2-5(3)15(9,11)12/h1-2H,8H2,(H2,9,11,12)(H2,10,13,14)
Smiles: O=S(=O)(N)c1c(N)cc(c(S(=O)(=O)N)c1)Cl

Uses

 1,3-Benzenedisulfonamide,4-amino-6-chloro- (CAS NO.121-30-2) is used as pharmaceutical intermediates,and also can be used for synthesis of hydrochlorothiazide and other bulk drugs.

Safety Profile

Hazard Codes: ToxicT
Risk Statements: 23/24-33 
R23/24/25: Toxic by inhalation, in contact with skin and if swallowed
R33: Danger of cumulative effects
Safety Statements: 28-36/37 
S28: After contact with skin, wash immediately with plenty of soap-suds
S36/37: Wear suitable protective clothing and gloves
WGK Germany: 3

Specification

 1,3-Benzenedisulfonamide,4-amino-6-chloro- (CAS NO.121-30-2) is also called as 4-Amino-6-chloro-1,3-benzenedisulfonamide ; Chloraminophenamide ; 3-Chloro-4,6-disulfamoylaniline ; 4-Amino-6-chloro-m-benzenedisulfonamide ; 5-Chloro-2,4-disulfamoylaniline ; Chloraminophenamide ; Chloroaminophenamide ; 4-Amino-6-chlorobenzene-1,3-disulphonamide ; m-Benzenedisulfonamide, 4-amino-6-chloro- (8CI) .