Phenacetin CAS 62-44-2

(4 customer reviews)

CAS No: 62-44-2
Molecular Formula C10H13NO2
Molecular Weight 179.22
Boiling Point 132 °C / 4mmHg
Melting point 133-136 °C


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1. What is phenacetin 62-44-2 powder?

Phenacetin, also known as Acetophenetidin, functions as a non-opioid analgesic and antipyretic agent. It acts as a selective inhibitor of COX-3 and is employed as a probe for studying cytochrome P450 enzymes, specifically CYP1A2, in human liver microsomes and rats. When stored, it has a recommended temperature of -20°C for up to three years and 4°C for up to two years in powder form.

Definition from wiki:

Phenacetin, also known as acetophenetidin or N-(4-ethoxyphenyl)acetamide, was a medication introduced in 1887 for pain relief and fever reduction. However, it was later withdrawn from medicinal use in the 1970s due to safety concerns and recognized dangers.

Product Name Phenacetin
Synonyms N-(4-Ethoxyphenyl)acetamide,Acetophenetidin, Acetphenetidin,

Acetophenetidine, Acetophenetin, p-Acetophenetidide,Phenacetine,Phenazetin

CAS Number 62-44-2
Molecular Formula C10H13NO2
Molecular Weight 179.22
EINECS Number 200-533-0
MDL Number MFCD00009094
Boiling Point 132 °C / 4mmHg
Melting point 133-136 °C (lit.)
Solubility  Methanol (Slightly)
Density 1.1248 (rough estimate)
Storage Temperature Sealed in dry,Room Temperature

2. What is the use of phenacetin?

Phenacetin was used as a pain-relieving and fever-reducing medication. It was widely used following its introduction in 1887. However, due to safety concerns, including its association with kidney damage and a rare but serious condition called methemoglobinemia, in several countries phenacetin do not work in medicinal use.

3. Is paracetamol the same as phenacetin ?

No, phenacetin and paracetamol (also known as acetaminophen in the United States and Canada) are different drugs, although they share some similarities. Both drugs were historically used for pain relief and fever reduction, phenacetin’s safety issues led to its discontinuation in many countries, while paracetamol remains a commonly used and widely available medication.

4 reviews for Phenacetin CAS 62-44-2

  1. Miguel

    The quality of the product is very good, exactly as described by the seller, very satisfied

  2. Carlos

    good packaging. this is I need produt shipping fast, will order again next week

  3. Stijn

    Fast and reliable company. Emily is also very helpful. Thank you.

  4. Luis

    I feel that the quality is very good, it is consistent with the description of the seller, the delivery speed is relatively fast, thank the seller

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