Name: China Manufacturer Supply High Purity Paracetamol/4-Acetamidophenol CAS 103-90-2 with good service
Brand: Wuhan Fortuna Chemical Co., Ltd.

Specifications of Paracetamol/4-Acetamidophenol CAS 103-90-2

Items	Specifications	Results
Appearance	White,odorless, crystalline powder	White,odorless crystalline powder
Identification	A.Infrared Spectroscopy	Complies
Identification	B.The retention time of the major peak of the Sample solution corresponds to that of the Standard solution,as obtained in the assay.	Complies
Solubility	Freely soluble in alcohol;soluble in boiling water and in 1N sodium Hydroxide	Comforms
Loss on drying	Not more than 0.5%	0.10%
Residue on ignition	Not more than 0.1%	0.05%
Free 4-aminophenol	Not more than 0.005%	0.0001%
Organic impurities	Relatedcompound B(N-(4-Hydroxyphenyl) Propanamide not more than 0.05%	0.017%
	Relatedcompound C(N-(2- Hydroxyphenyl)acetamide)not more than 0.05%	ND(＜LOD)
	Related compound D(N-Phenylacetamide)not more than 0.05%	ND(＜LOD)
	Related compound J(p-chloracetanilide)not more than 0.001%	ND(＜LOD)
	Any unspecified impurity not more than 0.05%	0.014%
	Total impurities not more than 0.1%	0.048%
Residual solvent	Residual content of acetic acid is limited by the test of loss on drying not more than 0.5%	0.10%
Assay(on the dried basis)	98.0%~102.0%	100.0%
Particle size	D50 D90	13.835μm 106.447μm
Conclusion	The product conforms to the above specifications.

Parameters of Paracetamol/4-Acetamidophenol CAS 103-90-2

Product parameters
Cas number:	103-90-2
Appearance:	White crystalline powder
Purity:	98.0% - 102.0%
Package details:	25kg/drum;25kg/bag
Brand:	Fortunachem

Acetaminophen (also known as paracetamol outside the U.S. and Canada) is a common over-the-counter (OTC) medication used primarily to relieve pain and reduce fever. It is one of the most widely used pain relievers in the world.

Chemical Class: It is not an NSAID (non-steroidal anti-inflammatory drug like ibuprofen or aspirin). It works differently, mainly in the central nervous system (brain and spinal cord).
How it Works: While its exact mechanism isn't fully understood, it is believed to work by blocking the production of prostaglandins (chemicals that cause pain and fever) in the brain, while having minimal effect on inflammation in the rest of the body.
Forms: It is available in many forms: tablets, capsules, liquid, chewable tablets, dissolvable powders, and suppositories. It is also a very common ingredient in many combination cold, flu, and sinus medicines.

Primary Uses of Acetaminophen

Pain Relief (Analgesic): Used to treat mild to moderate pain from various conditions, such as:

Headaches (including tension headaches)
Muscle aches and back pain
Arthritis pain (though it doesn't reduce joint inflammation)
Toothaches and pain after dental procedures
Menstrual cramps (period pain)
Minor aches and pains associated with the common cold or flu.

Fever Reduction (Antipyretic): Used to reduce fever. It is a standard go-to medicine for fevers in both adults and children.

Common Brand Names

You will often find acetaminophen sold under brand names such as:

Tylenol (the most well-known brand in the U.S.)
Panadol
FeverAll
Mapap
It is also the "APAP" or "acetam" component in many prescription pain relievers like Percocet (oxycodone/acetaminophen) or Tylenol with Codeine.

CRITICAL SAFETY INFORMATION (Extremely Important)

While safe and effective when used as directed, acetaminophen carries a major risk in cases of overdose, which can cause severe, sometimes fatal, liver damage.

Key Safety Rules:

Stick to the Recommended Dose: Do not exceed the maximum daily limit. For adults, this is generally 3,000 to 4,000 milligrams (mg) per day, but always follow the label instructions or your doctor's advice. Lower limits may apply for those with liver problems or who consume alcohol regularly.
Avoid "Double-Dipping": This is the most common cause of accidental overdose. Acetaminophen is in hundreds of combination medicines. Always check the active ingredients of all other medicines you are taking (for cold, flu, allergies, or prescription painkillers) to avoid taking multiple products containing acetaminophen.
Alcohol Warning: Consuming three or more alcoholic drinks per day while taking acetaminophen significantly increases the risk of liver damage.
Liver Disease: People with liver disease (like hepatitis or cirrhosis) must consult a doctor before use.
Overdose Symptoms: Early signs of overdose can be non-specific (nausea, vomiting, loss of appetite) but can progress to liver failure. Overdose is a medical emergency.

Summary

Acetaminophen is a widely accessible and effective medication for reducing fever and treating mild to moderate pain. Its main advantage is that it doesn't cause stomach upset or bleeding like NSAIDs can. However, its safety is entirely dependent on strict adherence to dosage guidelines to prevent the serious risk of liver toxicity.

Disclaimer: This information is for educational purposes only and is not medical advice. Always read and follow the label, and consult with a healthcare professional or pharmacist if you have any questions or underlying health conditions.