Acetaminophen

Name: Acetaminophen
Brand: Vaqora Chemicals
SKU: VQ-013189

About Acetaminophen

Listed under CAS 103-90-2, Acetaminophen is a process intermediate or related compound of Paracetamol available from Vaqora Chemicals. With the molecular formula C8H9NO2, it has a molar mass of 151.16 g/mol. Systematically, it is named N-(4-hydroxyphenyl)acetamide. Common synonyms include 4-Acetamidophenol and 4-(Acetylamino)phenol.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Process chemists and analysts use it when developing synthetic routes to Paracetamol, tracking process-related impurities and validating analytical methods. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Acetaminophen is dispatched with a Certificate of Analysis (COA) to destinations worldwide. This item is currently in stock for prompt dispatch.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Paracetamol

View every impurity, metabolite and intermediate we list for Paracetamol.

Paracetamol impurities

Specifications & identifiers

Chemical identifiers
Product name	Acetaminophen
Catalogue No.	VQ-013189
CAS Number	103-90-2
IUPAC name	N-(4-hydroxyphenyl)acetamide
Molecular formula	C₈H₉NO₂
Molecular weight	151.16 g/mol
Exact mass	151.0633
Grade	Reference Standard
HSN code	2933
InChIKey	RZVAJINKPMORJF-UHFFFAOYSA-N
SMILES	CC(=O)NC1=CC=C(C=C1)O
PubChem CID	1983

Physical properties
Physical form	Solid
LogP (XLogP3)	0.5
H-bond donors / acceptors	2 / 2
TPSA	49.3 Å²
Synonyms	4-Acetamidophenol, 4-(Acetylamino)phenol, Paracetamol, 4-Hydroxyacetanilide, Tylenol, 4'-Hydroxyacetanilide, Panadol, N-Acetyl-p-aminophenol, Algotropyl, p-Acetamidophenol, p-Hydroxyacetanilide, Doliprane

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H412Harmful to aquatic life with long lasting effects

Precautionary statements: P264, P264 + P265, P270, P273, P280, P301 + P317, P302 + P352, P305 + P351 + P338, P321, P330, P332 + P317, P337 + P317, P362 + P364, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 103-90-2

Synthesis

p-Hydroxy acetanilide, 98%+

CAS: 103-90-2
Formula: C₈H₉NO₂
MW: 151.16 g/mol

VQ-009056

IP/BP/USP

Paracetamol

CAS: 103-90-2
Formula: C₈H₉NO₂
MW: 151.16 g/mol

VQ-004011

Frequently asked questions

What is the CAS number of Acetaminophen?

The CAS Registry Number of Acetaminophen is 103-90-2. It is also known as 4-Acetamidophenol, 4-(Acetylamino)phenol, Paracetamol.

What is the molecular formula and molecular weight of Acetaminophen?

Acetaminophen has the molecular formula C8H9NO2 and a molecular weight of 151.16 g/mol. Its IUPAC name is N-(4-hydroxyphenyl)acetamide.

What is Acetaminophen used for?

Acetaminophen is supplied as a characterised reference material related to Paracetamol. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Acetaminophen can I order?

We supply Acetaminophen in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Acetaminophen?

Yes. Every lot of Acetaminophen is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Acetaminophen be shipped internationally?

Yes. Acetaminophen is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.