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Benzenesulfonic acid, 5-amino-2-((4-aminophenyl)amino)-

HCID 67070
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Basic information

CAS
119-70-0
Standard SMILES
Nc1ccc(Nc2ccc(N)cc2S(=O)(=O)O)cc1
InChIKey
VKURVCNKVWKGLX-UHFFFAOYSA-N
Molecular formula
C12H13N3O3S
Average molar mass
279.32 g/mol
Monoisotopic mass
279.06776246

Names & identifiers

Preferred name
Benzenesulfonic acid, 5-amino-2-((4-aminophenyl)amino)-
IUPAC
5-amino-2-(4-aminoanilino)benzenesulfonic acid
English name
5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid
Molecular formula
C12H13N3O3S
Molecular weight
279.31

Names & synonyms

5-Amino-2-((4-aminophenyl)amino)benzenesulfonic acid5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acidBenzenesulfonic acid, 5-amino-2-[(4-aminophenyl)amino]-6-(p-Aminoanilino)metanilic acid4-(p-Aminoanilino)-3-sulfoaniline4,4'-Diaminodiphenylamine-2'-sulfonic acid5-Amino-2-(p-aminoanilino)benzenesulfonic acidNSC 4706Diphenylamine-2-sulfonic acid, 4,4'-diamino-EINECS 204-344-45-Amino-2-(p-aminoanilino)benzenesulphonic acidBenzenesulfonic acid, 5-amino-2-(p-aminoanilino)-
Show more names
FC ACIDTIMTEC-BB SBB001129Benzenesulfonic acid, 5-amin4,4'-diamino-2-sulfodiphenylamine4,4-DIAMINO DIPHENYL-2-SULPHONIC ACID4,4'-diamino diphenyl-2-sulfonic acid4,4'-DIAMINODIPHENYLAMINE-2-SULFONIC ACID
AI3-23227Benzenesulfonic acid, 5-amino-2-((4-aminophenyl)amino)-EC 204-344-4RefChem:5647014(pAminoanilino)3sulfoaniline6(pAminoanilino)metanilic acid4,4'Diamino2sulfodiphenylamine4,4'Diaminodiphenylamine2'sulfonic acid

Database identifiers

CAS
119-70-0、97675-30-4
PubChem CID
67070
DTXSID
DTXSID1059492
ChEMBL
CHEMBL560968
UNII
7B2AG5D9PQ
EC Number
204-344-4、307-600-4
Nikkaji
J64.444G

Properties

Computed structural properties

XLogP
1.4
Topological polar surface area
127 Ų
Hydrogen bond donors
4
Hydrogen bond acceptors
6
Rotatable bonds
3
Heavy atoms
19
Formal charge
0
Complexity
388

Experimental & physicochemical properties

PolymersNitrogen Compounds -> Amines, Polyaromatic
Physical DescriptionPurple solid; [Sigma-Aldrich MSDS]

Physicochemical properties

Melting point
244 °C · 244 °C(lit.)
Density
1.527 · 1.527±0.06 g/cm3(Predicted)
vapor pressure
0 Pa · 0Pa at 25℃
storage temp.
2 · 2-8°C(protect from light)
form
Solid
pka
-1.24 · -1.24±0.50(Predicted)
InChIKey
VKURVCNKVWKGLX-UHFFFAOYSA-N
Dissociation constant
0 at · 0 at 33℃
CAS DataBase Reference
119 · 119-70-0(CAS DataBase Reference)
FDA UNII
7 B2AG5D9PQ · 7B2AG5D9PQ
EPA Substance Registry System
5 · Benzenesulfonic acid, 5-amino-2-[(4-aminophenyl)amino]- (119-70-0)

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 3 items

This chemical does not meet GHS hazard criteria for 98.5% (128 of 130) of all reports.

Not Classified

Aggregated GHS information provided per 130 reports by companies from 3 notifications to the ECHA C&L Inventory.

Hazard information

Regulatory InformationREACH registered substance: 5-amino-2-(p-aminoanilino)benzenesulphonic acid (EC: 204-344-4)
Hazards SummaryMay cause irritation; [Sigma-Aldrich MSDS] See Diphenylamine and 4-Aminodiphenylamine. See C.I. Acid Orange 3.
Hazard Classes and CategoriesNot Classified

Safety data

wgk
3
tsca
TSCA listed
Signal word
Warning
Symbol(GHS)
GHS07
Hazard statements
H335-H319-H315
REACH Registrations
Active
Precautionary statements
P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362

Chemistry & industry

Uses & manufacturing

UsesUsed as an intermediate; [ExPub: ECHA REACH Registrations]
General Manufacturing InformationBenzenesulfonic acid, 5-amino-2-[(4-aminophenyl)amino]-: ACTIVE

Applications

Uses5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid is used as an intermediate of organic synthesis.

Upstream & downstream products

Upstream raw materials

4'-Aminoacetanilide

Downstream products

C.I. Direct Black 1515-[[4-(aminosulphonyl)-2-nitrophenyl]amino]-2-[[4-[[4-(aminosulphonyl)-2-nitrophenyl]amino]phenyl]amino]benzenesulphonic acidDirect Black 197Direct Blue 278DIRECT BLACK 22C.I. Direct Blue, heptasodium saltReactive Yellow ME7GLDirect Black 198Direct Blue 278:1

Related reactions

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Compound notes

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On this pageBasic informationNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
More actions
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Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
335 · H335-H319-H315
Precautionary statements
264 · P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
WGK Germany
3 · 3
TSCA
TSCA listed
REACH Registrations
Active
Direct Black 199
Reactive Blue 256
2,7-Naphthalenedisulfonic acid, 5-amino-3-[[4-[[4-[[4-[[4-[(8-amino-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo]-6(or 7)-sulfo-1-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-6(or 7)-sulfo-1-naphthalenyl]azo]-4-hydroxy-, heptasodium salt
Direct Black 196
2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt
Direct Black 150