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88-45-9

Basic Information
CAS No.: 88-45-9
Name: 2,5-Diaminobenzenesulfonic acid
Article Data: 26
Molecular Structure:
Molecular Structure of 88-45-9 (2,5-Diaminobenzenesulfonic acid)
Formula: C6H8N2O3S
Molecular Weight: 188.207
Synonyms: 1,4-Diamino-2-benzenesulfonicacid;1,4-Diaminobenzene-2-sulfonic acid;1,4-Phenylenediamine-2-sulfonic acid;1,4-Phenylenediamine-3-sulfonic acid;2,5-Diaminophenyl-1-sulfonic acid;p-Phenylenediamine-2-sulfonic acid;p-Phenylenediaminesulfonic acid;
EINECS: 201-832-9
Density: 1.611 g/cm3
Melting Point: 298-300 °C (dec.)(lit.)
Boiling Point: 500ºC
Flash Point: Not applicable.
Solubility: 4g/L at 26℃
Appearance: violet powder
Hazard Symbols: CorrosiveC,IrritantXi
Risk Codes: 34-36/37/38
Safety: 26-36/37/39-45-36
Transport Information: UN 2583 8/PG 2
PSA: 114.79000
LogP: 2.34090
Synthetic route
533-30-2

1,3-benzothiazol-6-amine

88-45-9

2,5-diaminobenzenesulfonic acid

Conditions
ConditionsYield
With [RuCl(P(C6H5)3)2(O(C6H4)NCH(C4H3N))]; bromamine B; sodium hydroxide In water; acetonitrile at 39.84℃; for 4.33333h;96%
103303-10-2, 637-70-7, 68456-83-7

N,N'-dichloro-1,4-benzoquinone diimine

88-45-9

2,5-diaminobenzenesulfonic acid

Conditions
ConditionsYield
With sodium disulfite; water
551-91-7

5-amino-2-nitro-benzenesulfonic acid

88-45-9

2,5-diaminobenzenesulfonic acid

Conditions
ConditionsYield
With hydrogenchloride; tin(ll) chloride
88-42-6

2,5-dichlorobenzenesulfonic acid

88-45-9

2,5-diaminobenzenesulfonic acid

Conditions
ConditionsYield
With ammonium hydroxide; copper chloride unter Druck;
88-43-7

4-chloroaniline-3-sulfonic acid

88-45-9

2,5-diaminobenzenesulfonic acid

Conditions
ConditionsYield
With copper salt; ammonia unter Druck;
133-74-4

2-amino-5-chlorobenzenesulfonic acid

88-45-9

2,5-diaminobenzenesulfonic acid

Conditions
ConditionsYield
With copper salt; ammonia unter Druck;
540-24-9

p-phenylenediamine hydrochloride

88-45-9

2,5-diaminobenzenesulfonic acid

Conditions
ConditionsYield
With potassium dichromate; acetic acid man gibt dann Natriumsulfit hinzu;
100-01-6

4-nitro-aniline

88-45-9

2,5-diaminobenzenesulfonic acid

Conditions
ConditionsYield
With hydrogenchloride; sodium hydrogensulfite at 107℃;
101-50-8

4-aminoazobenzene-3,4'-disulfonic acid

88-45-9

2,5-diaminobenzenesulfonic acid

Conditions
ConditionsYield
With hydrogenchloride; tin(ll) chloride
106-50-3

1,4-phenylenediamine

88-45-9

2,5-diaminobenzenesulfonic acid

Conditions
ConditionsYield
With lead dioxide man filtriert und giesst das Filtrat in eine mit Eisessig angesaeuerte Natriumsulfitloesung;
With sulfuric acid at 145℃; for 7h;
With sulfuric acid; sulfur trioxide
Stage #1: 1,4-phenylenediamine With sulfuric acid at 145℃; for 7h;
Stage #2: With water at 135℃; for 3h;
3.8 g
Downstream Products
96-73-1
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Chemistry

Molecular Formula: C6H8N2O3S
Molecular Weight: 188.2
EINECS: 201-832-9
Melting point: 298-300 °C (dec.)(lit.)
Boiling point:  500 °C
pKa/pKb: 8.83 (pKb)
Solubility in water: Very soluble
Appearance: Violet powder
p-Phenylenediaminesulfonic acid's(88-45-9) Synonyms: 1,4-PHENYLENEDIAMINE-2-SULPHONIC ACID;1,4-PHENYLENEDIAMINE-3-SULFONIC ACID;1,4 DIAMINOBENZENE 2 SULFONIC ACID;2,5-DIAMINOBENZENESULFONIC ACID;PARA PHENYLENE DIAMINE SULFONIC ACID;2,5-diamino-benzenesulfonicaci;2,5-diaminobenzenesulphonic acid
p-Phenylenediaminesulfonic acid's(88-45-9) structural formula:

Toxicity Data With Reference

1.   

dns-rat:lvr 100 µmol/L

   MUREAV    Mutation Research. 206 (1988),183.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Mutation data reported. When heated to decomposition it emits toxic vapors of NOx and SOx.

p-Phenylenediaminesulfonic acid's(88-45-9) Safety Information
Hazard Codes  C,Xi
Risk Statements  34-36/37/38
Safety Statements  26-36/37/39-45-36
RIDADR  UN 2583 8/PG 2
WGK Germany  2
RTECS  DB5900100
HazardClass  8
PackingGroup  III

Specification

Handling and Storage for p-Phenylenediaminesulfonic acid(88-45-9)
Storage: Keep container closed when not in use. Corrosives area.
Handling: Minimize dust generation and accumulation in a well ventilated area. Do not breathe dust, vapor, mist, or gas. Keep container tightly closed. Do not ingest or inhale. Discard contaminated shoes.