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PHR1094

Supelco

Phenacetin melting point standard

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(s):

Phenacetin, 1-Acetyl-p-phenetidin, 4′-Ethoxyacetanilide, N-(4-Ethoxyphenyl)acetamide, p-Acetophenetidide, Acetophenetidin

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About This Item

Linear Formula:
CH3CONHC6H4OC2H5
CAS Number:
Molecular Weight:
179.22
Beilstein:
1869238
EC Number:
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

certified reference material
pharmaceutical secondary standard

Quality Level

Agency

traceable to USP 1514008

API family

phenacetin

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

~Approximately 135 °C
133-136 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

SMILES string

CCOc1ccc(NC(C)=O)cc1

InChI

1S/C10H13NO2/c1-3-13-10-6-4-9(5-7-10)11-8(2)12/h4-7H,3H2,1-2H3,(H,11,12)

InChI key

CPJSUEIXXCENMM-UHFFFAOYSA-N

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General description

Phenacetin is a mild analgesic drug effective for the treatment of mild to moderate pain. Its analgesic property is comparable to that of aspirin.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Application

Phenacetin may be used as a calibration standard for the development of a test for the evaluation of phenacetin by thermal analyzes methods.
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Biochem/physiol Actions

Substrate of CYP1A2 and CYP2D6.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Footnote

To see an example of a Certificate of Analysis for this material enter LRAC4010 in the slot below. This is an example certificate only and may not be the lot that you receive.

Recommended products

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Pictograms

Health hazardExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Carc. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Paracetamol and phenacetin
Clissold SP
Drugs, 32(4), 46-59 (1986)
Purity and heat of fusion data for environmental standards as determined by differential scanning calorimetry
Donnelly JR, et al.
Thermochimica Acta, 167(2), 155-187 (1990)
Broad range purity analysis by melting point depression using a singular feature common to all DSC purity scans
Gustin GM
Thermochimica Acta, 39(2), 81-93 (1980)
L F Prescott
British journal of clinical pharmacology, 10 Suppl 2, 291S-298S (1980-10-01)
1 The rate of absorption of oral paracetamol depends on the rate of gastric emptying and is usually rapid and complete. The mean systemic availability is about 75%. 2 Paracetamol is extensively metabolized and the plasma half-life is 1.5-2.5 hours.
S P Clissold
Drugs, 32 Suppl 4, 46-59 (1986-01-01)
Since their synthesis in the late 1800s paracetamol (acetaminophen) and phenacetin have followed divergent pathways with regard to their popularity as mild analgesic/antipyretic drugs. Initially, paracetamol was discarded in favour of phenacetin because the latter drug was supposedly less toxic.

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