4-Aminobenzophenone (CAS 1137-41-3), also identified as p-Aminobenzophenone, is a yellow to tan crystalline powder belonging to the class of aromatic ketones, primarily utilized as a pivotal intermediate in the pharmaceutical industry for the synthesis of anthelmintic drugs like Mebendazole. This (4-Aminophenyl)(phenyl)methanone compound functions as a reactive building block in Para-aminobenzophenone derived pathways, providing the necessary benzoyl and amine functionalities for cyclization reactions, while also serving as a precursor for photoinitiators in UV-curable polymer systems. To support industrial-scale requirements, we provide bulk supply with competitive factory pricing and ensure rigorous quality control through customized specifications alongside standard technical documentation, including MSDS, TDS, COA.
4-Aminobenzophenone CAS 1137-41-3
- CAS: 1137-41-3
- Synonyms: p-Aminobenzophenone, 4-Aminophenyl phenyl methanone, PABP, Para-aminobenzophenone, Methanone, (4-aminophenyl)phenyl-
- Einecs: 214-506-6
- Molecular Formula: C13H11NO
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packing
Product Description
4-Aminobenzophenone
Cas ： 1137-41-3
Formula: C13H11NO
Molecular Weight: 197.24
Appearance: Yellowish crystalline powder
Content: ≥99%
Packing: 25kg/drum
Density: 1.161 g/cm3
Melting point: 121-124 °C(lit.)
Boiling point: 246 °C (12.7517 mmHg)
Flash point: 245-247°C/22mm
Refractive index: 1.628
Storage conditions: The warehouse is ventilated and dried at low temperature
First aid measures
First aid:
- 1.Inhalation: If inhaled, move the patient to fresh air.
- 2.Skin contact: Remove contaminated clothing and rinse the skin thoroughly with soapy water and clean water. If you feel unwell, seek medical attention.
- 3.Eye contact: separate the eyelids and rinse with running water or saline. Seek medical attention immediately.
- 4.Ingestion: Gargle, no vomiting. Seek medical attention immediately.
Advice for Protecting Rescuers:
- 1.Transfer the patient to a safe place. Consult a doctor. Show this chemical safety technical manual to the doctor at the scene.
FAQ - Technical & Supply Chain
-
Q:
Is 4-Aminobenzophenone (CAS 1137-41-3) light sensitive?
A: Yes, like many aromatic amines and ketones, it is sensitive to light exposure ( C13H11NO), which can cause the powder to darken from yellow to brown; it requires storage in light-resistant containers. -
Q:
What is the primary pharmaceutical application of this intermediate?
A: It is the key starting material for the synthesis of Mebendazole, a broad-spectrum anthelmintic medication used to treat worm infections, formed via reaction with methyl chloroformate and S-methylisothiourea.
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.
