MSDS Paracetamol (Acetaminophen) (C8H9NO2) – Safety Data Sheet & GHS Hazards

Summary MSDS for Paracetamol (Acetaminophen) (C8H9NO2), CAS 103-90-2: substance identity, GHS hazard classification, hazard and precautionary statements, and links to the manufacturer's official SDS.

TCI H0190 – 4'-Hydroxyacetanilide

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TCI H0190 – 4'-Hydroxyacetanilide

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Identity summary

Name Paracetamol (Acetaminophen)
Other names (IUPAC) Acetaminophen, N-(4-hydroxyphenyl)acetamide
Molecular formula C8H9NO2
CAS number 103-90-2
Molar mass 151.16 g/mol
PubChem CID 1983

Molar mass of C8H9NO2 and how to calculate it

The molar mass of C8H9NO2 is 151.16 g/mol, the sum of the relative atomic masses of all atoms in the formula: 8 × 12.011 + 9 × 1.008 + 14.007 + 2 × 15.999 = 151.16 g/mol.

Element Atoms Atomic mass Contribution Mass %
C 8 12.011 96.09 63.56%
H 9 1.008 9.07 6.00%
N 1 14.007 14.01 9.27%
O 2 15.999 32.00 21.17%

So 1 mol of C8H9NO2 weighs 151.16 g, and 1 L of a 0.1 M solution needs 15.116 g of pure C8H9NO2. For liquid or concentrated reagents, work from assay and density with the dilution formula. Calculate other compounds with the molar mass calculator.

Hazard identification (GHS)

Signal word: DANGER

Pictograms:

GHS07 – Harmful / irritant
Harmful / irritant
GHS08 – Health hazard
Health hazard
GHS09 – Environmental hazard
Environmental hazard

Meaning of all GHS hazard symbols

Hazard statements (H)

  • H302: Harmful if swallowed.
  • H371: May cause damage to organs.
  • H370: Causes damage to organs.
  • H372: Causes damage to organs through prolonged or repeated exposure.
  • H373: May cause damage to organs through prolonged or repeated exposure.
  • H341: Suspected of causing genetic defects.
  • H411: Toxic to aquatic life with long lasting effects.

Precautionary statements (P)

Prevention

  • P273: Avoid release to the environment.
  • P260: Do not breathe dust.
  • P270: Do not eat, drink or smoke when using this product.
  • P202: Do not handle until all safety precautions have been read and understood.
  • P201: Obtain special instructions before use.
  • P264: Wash skin thoroughly after handling.
  • P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.

Response

  • P391: Collect spillage.
  • P308 + P311: IF exposed or concerned: Call a POISON CENTER/doctor.
  • P301 + P312 + P330: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth.

Storage

  • P405: Store locked up.

Disposal

  • P501: Dispose of contents/ container to an approved waste disposal plant.

The GHS classification above matches TCI (Tokyo Chemical Industry) official data for product H0190 4'-Hydroxyacetanilide. Substance identity from PubChem CID 1983.

Download the official SDS & CoA

The applicable Safety Data Sheet is the manufacturer's SDS for the product and lot you purchase. For products available from AMI Scientific:

TCI H0190 – 4'-Hydroxyacetanilide Official SDS & CoA (TCI)
TCI H0190 – 4'-Hydroxyacetanilide View product

SDS and lot-specific CoA are sent with the quotation/order or on request.

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What is an MSDS/SDS?

An MSDS (Material Safety Data Sheet), now called an SDS (Safety Data Sheet), is a 16-section document describing the hazards, handling, storage, first aid, and disposal of a chemical. Read the full MSDS guide and other MSDS pages.

This summary was compiled by AMI Scientific from TCI official GHS data for information purposes. Classification may differ by concentration, form, and supplier. Always refer to the manufacturer's official SDS for the product and lot you use. Updated: 06-11-2026.