4-Aminobenzoic acid
2 Inquiries
150-13-0
99%
China port
25 kg fiber drum
2026-04-30
Chemical products
-
Product Description
-
Seller Information
-
Inquiry History
-
DescriptionECHEMI Editorial ReferenceWhite to off white crystalline powderChEBI: An aminobenzoic acid in which the amino group is para to the carboxy group.4-Aminobenzoic acid (also known as para-aminobenzoic acid or PABA because the number 4 carbon in the benzene ring is also known as the para position) is an organic compound with the formula H2NC6H4CO2H. PABA is a white solid, although commercial samples can appear gray. It is slightly soluble in water. It consists of a benzene ring substituted with amino and a carboxyl groups.
P-aminobenzoic acid appears as colorless crystals that discolor on exposure to light and air. (NTP, 1992)|Solid
P-aminobenzoic acid appears as colorless crystals that discolor on exposure to light and air. (NTP, 1992)|4-aminobenzoic acid is an aminobenzoic acid in which the amino group is para to the carboxy group. It has a role as an Escherichia coli metabolite, a plant metabolite and an allergen. It derives from a benzoic acid. It is a conjugate acid of a 4-aminobenzoate.|A member of the vitamin B complex. It used to be common in sunscreening agents until found to also be a sensitizer. The potassium salt is used therapeutically in fibrotic skin disorders.|Aminobenzoic acid is a Vitamin B Complex Member.|Aminobenzoic Acid is an organic acid with UV absorption and antifibrotic properties. When exposed to light, aminobenzoic acid (para-aminobenzoic acid or PABA) absorbs UV light and emits excess energy via a photochemical reaction that may cause damage to DNA. Because DNA defects contribute to skin cancer, aminobenzoic acid is no longer widely used in sunscreen formulations. Aminobenzoic acid may also increase oxygen uptake at the tissue level and may enhance monoamine oxidase (MAO) activity to promote the degradation of serotonin, which in excess, may lead to fibrotic changes.|An aminobenzoic acid isomer that combines with pteridine and GLUTAMIC ACID to form FOLIC ACID. The fact that 4-aminobenzoic acid absorbs light throughout the UVB range has also resulted in its use as an ingredient in SUNSCREENS.Basic Info-
Product Name:
4-Aminobenzoic acid
Other Name:Benzoic acid,4-amino-;Benzoic acid,p-amino-;4-Aminobenzoic acid;Amben;p-Aminobenzoic acid;Anticanitic vitamin;Chromotrichia factor;Anti-Chromotrichia factor;PABA;Paraminol;Trichochromogenic factor;Vitamin BX;Vitamin H';p-Carboxyaniline;Paranate;p-Carboxyphenylamine;4-Carboxyaniline;PAB;Hachemina;Pabacyd;Pabafilm;Pabamine;Romavit;Aniline-4-carboxylic acid;Sunbrella;Antichromotrichia factor;Anticantic vitamin;Bacterial vitamin H1;NSC 7627;4-Carboxyphenylamine;Actipol;4-Aminobenzenecarboxylic acid;p-Aminobenzenecarboxylic acid;para-Aminobenzoates;8014-65-1
CAS No.:150-13-0
Molecular Formula:C7H7NO2
InChIKeys:InChIKey=ALYNCZNDIQEVRV-UHFFFAOYSA-N
Molecular Weight:137.14
Exact Mass:137.14
BRN:471605
EC Number:205-753-0
UNII:TL2TJE8QTX
NSC Number:7627
DSSTox ID:DTXSID6024466
NCI Thesaurus Code:C61634
Color/Form:Monoclinic prisms from dilute alcohol|Light buff crystals; white when pure|Yellowish to red crystals or prisms|White or slightly yellow crystals or crystalline powder
ATC Code:D - Dermatologicals
HScode:29224995
Categories:
Characteristics-
PSA:
63.3
XLogP3:0.8
Appearance:White to light yellow Crystalline Powder
Density:1.37 (NTP, 1992)
Melting Point:188.5 °C
Boiling Point:200 °C @ Press: 10 Torr
Flash Point:250 °C
Refractive Index:1.5323 (estimate)
Water Solubility:H2O: 4.7 g/L (20 ºC);95% ethanol: soluble 5%, clear to slightly hazy, colorless to yellow
Storage Conditions:2-8°C
Vapor Pressure:4.5X10-6 mm Hg at 25 deg C /Extrapolated from measurements at higher temperatures/
Toxicity:Oral-mouse LD50: 2850 mg/kg; Oral-rabbit LD50: 1000 mg/kg
Flammability characteristics:Flammable; burning produces toxic nitrogen oxide fumes
Odor:Odorless
PH:pH (0.5% solution): 3.5
PKA:2.38(at 25 °C)
Henrys Law Constant:Henry's Law constant = 1.5X10-10 atm-cu m/mole at 25 °C (est)
Dissociation Constants:2.38 (at 25 °C)|pKa1 = 2.38 at 25 °C|pKa2 = 4.85 at 25 °C
Collision Cross Section:131 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|127.3 Ų [M+H]+
Experimental Properties:May turn slightly yellow on prolonged exposure to light and air|Hydroxyl radical reaction rate constant = 4.0X10-11 cu cm/molecule sec at 25 °C (est)
Air and Water Reactions:No rapid reaction with air. No rapid reaction with water.
Reactive Group:Acids, Carboxylic
Reactivity Profile:P-AMINOBENZOIC ACID is incompatible with ferric salts and oxidizing agents. (NTP, 1992)
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 4, Oral
Eye irritation, Category 2
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H302 Harmful if swallowed
H319 Causes serious eye irritation
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
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
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
Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place. Recommended storage temperature: 2 - 8 deg C. Air and light sensitive.
-
-
Seller Information
-
Business Type:
Trader
-
Main Products:
Chemical products
-
Location:
No. 7999 Jiankang East Street, Shangcheng Community, Qingchi Sub-district, Xincheng Sub-district, High-tech Zone, Weifang City, Shandong Province
-
Total Annual Revenue:
$1 million-$2.5 million
-
Total Employees:
5-10
-
Year of Establishment:
2025
-
-
Inquiry History2 Inquiries
Country Product Purchase Quantity Date Posted 
Russia
4-aminobenzoic acid
800 KG Aug 19, 2026 
South Korea
EDTA-2Na
1 MT Sep 2, 2024 Post an enquiry for this product
Hot Related Products
-
![Sodium Hypochlorite 1]( "Sodium Hypochlorite 1")
Sodium Hypochlorite 1 -
![Sodium hypochlorite 99% Light yellow liquid ZSHHY-7681-52-9 SHANDONG ZHISHANG CHEMICAL]( "Sodium hypochlorite 99% Light yellow liquid ZSHHY-7681-52-9 SHANDONG ZHISHANG CHEMICAL")
Sodium hypochlorite 99% Light yellow liquid ZSHHY-7681-52-9 SHANDONG ZHISHANG CHEMICAL -
![Sodium hypochlorite 10% Pale yellow Vietchem Vietchem]( "Sodium hypochlorite 10% Pale yellow Vietchem Vietchem")
Sodium hypochlorite 10% Pale yellow Vietchem Vietchem -
![7681-52-9 price]( "7681-52-9 price")
7681-52-9 price -
![sodium hypochlorite NaClO]( "sodium hypochlorite NaClO")
sodium hypochlorite NaClO -
![sodium hypochlorite 7681-52-9 Commonly found in household bleach products for stain removal and surface cleaning]( "sodium hypochlorite 7681-52-9 Commonly found in household bleach products for stain removal and surface cleaning")
sodium hypochlorite 7681-52-9 Commonly found in household bleach products for stain removal and surface cleaning
