Sulfanilic acid CAS NO: 121-57-3
TDS 4 Inquiries
121-57-3
Industrial Grade
99%
Qingdao
Orient
Vial/Bottle/Bag/Carton
2027-12-30
pharmaceutical intermediates,peptides,electronic chemicals
-
Product Description
-
Seller Information
-
Inquiry History
-
DescriptionECHEMI Editorial Referencegreyish-white crystals or powderChEBI: An aminobenzenesulfonic acid that is aniline sulfonated at the para-position.Sulfanilic acid (4-amino benzene sulfonic acid ) is an off-white crystalline solid which finds application in quantitative analysis of nitrate and nitrite ions. The solid acid exists as a zwitterion, and has an unusually high melting point.White powder with faint purple tinge. Grayish-white flat crystals. Becomes anhydrous at around 212°F. Low toxicity (used medicinally).CertificatesBasic Info
-
Product Name:
Sulfanilic acid
Other Name:Benzenesulfonic acid,4-amino-;Sulfanilic acid;4-Aminobenzenesulfonic acid;p-Aminobenzenesulfonic acid;Aniline-p-sulfonic acid;Aniline-4-sulfonic acid;Sulphanilic acid;1-Aminobenzene-4-sulfonic acid;p-Aminophenylsulfonic acid;p-Sulfoaniline;4-Aminophenylsulfonic acid;4-Sulfoaniline;NSC 7170;856062-06-1
CAS No.:121-57-3
Molecular Formula:C6H7NO3S
InChIKeys:InChIKey=HVBSAKJJOYLTQU-UHFFFAOYSA-N
Molecular Weight:173.19
Exact Mass:173.19
BRN:908765
EC Number:204-482-5
UNII:434Z8C2635
ICSC Number:0569
NSC Number:7170
UN Number:2585
DSSTox ID:DTXSID6024464
Color/Form:Orthorhombic plates or monoclinic from water
HScode:29214210
Categories:
Characteristics-
PSA:
88.8
XLogP3:-0.9
Appearance:4-aminobenzene sulfonic acid appears as white powder with faint purple tinge. Grayish-white flat crystals. Becomes anhydrous at around 212°F. Low toxicity (used medicinally).
Density:1.485 g/cm3 @ Temp: 25 °C
Melting Point:288 °C
Boiling Point:500ºC
Refractive Index:1.5500 (estimate)
Water Solubility:H2O: 0.1 g/100 mL (20 ºC)
Storage Conditions:Store in dark!
Vapor Pressure:1X10-9 mm Hg at 25 deg (est)
Toxicity:Oral-Rat LD50: 12300 mg/kg
Flammability characteristics:Combustion produces toxic nitrogen oxide and sulfur oxide gas
Henrys Law Constant:Henry's Law constant = 8.9X10-13 atm-cu m/mole at 25 °C (est)
Dissociation Constants:pKa = 3.25 at 25 °C; pKa = 3.34 at 15 °C
Experimental Properties:Orthorhombic plates from water; decomposes without melting at about 288 °C (Also reported as greater than 360 °C); almost insoluble in ethanol, ether, benzene; slightly soluble in hot methanol; K2 at 25 °C: 5.93x10-4 /Sulfanilic acid monohydrate/|Grayish white, flat crystals /Sulfanilic acid monohydrate/|Hydroxyl radical reaction rate constant = 2.3X10-11 cu cm/molecule-sec at 25 °C (est)
Air and Water Reactions:Insoluble in water.
Reactive Group:Amines, Phosphines, and Pyridines
Reactivity Profile:4-AMINOBENZENE SULFONIC ACID is an amino acid. Reacts weakly with both acids and bases.
Hazard IdentificationClassification of the substance or mixture
Skin irritation, Category 2
Eye irritation, Category 2
Skin sensitization, Category 1
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H315 Causes skin irritation
H319 Causes serious eye irritation
H317 May cause an allergic skin reaction
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
Response P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P333+P317 If skin irritation or rash occurs: Get medical help.
Storage none
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
NO open flames. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from strong acids and strong bases.
-
-
Seller Information
-
Business Type:
Trader
-
Main Products:
pharmaceutical intermediates,peptides,electronic chemicals
-
Location:
Room 102, 1st Floor, East Office Building, No. 45 Pengwan Road, Qianwan Bonded Port Area, Qingdao Zone, China (Shandong) Pilot Free Trade Zone
-
Payment Terms:
100% TT in advance
-
Average lead Time:
10
-
Total Annual Revenue:
$10 million-$25 million
-
Total Employees:
51-100
-
Year of Establishment:
2024
-
-
Inquiry History4 Inquiries
Country Product Purchase Quantity Date Posted 
India
Sulfanilic acid
20.00 MT Sep 15, 2023
India
Sulfanilic acid
20.00 MT Oct 26, 2023
India
Sulphanilic Acid
25 KG Jul 1, 2026 
Pakistan
Sulphanilic acid
1000 KG Nov 18, 2025 Post an enquiry for this product
