Skip to Content
Merck

A5376

Acetylsalicylic acid

≥99.0%

Synonym(s):

2-Acetoxybenzoic acid, O-Acetylsalicylic acid, ASA, Aspirin

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
2-(CH3CO2)C6H4CO2H
CAS Number:
50-78-2
Molecular Weight:
180.16
UNSPSC Code:
12352106
NACRES:
NA.21
PubChem Substance ID:
24278218
EC Number:
200-064-1
Beilstein/REAXYS Number:
779271
MDL number:
MFCD00002430

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Acetylsalicylic acid, ≥99.0%

InChI key

BSYNRYMUTXBXSQ-UHFFFAOYSA-N

InChI

1S/C9H8O4/c1-6(10)13-8-5-3-2-4-7(8)9(11)12/h2-5H,1H3,(H,11,12)

SMILES string

CC(=O)Oc1ccccc1C(O)=O

biological source

synthetic

assay

≥99.0%

form

powder

color

white

pKa (25 °C)

3.5

mp

134-136 °C (lit.)

solubility

H2O: 10 mg/mL at 37 °C(lit.)
H2O: 3 mg/mL at 25 °C(lit.)
ethanol: 50 mg/mL
aqueous base: decomposes

ε (extinction coefficient)

190 at 298 nm in aqueous base at 1 mM
409 at 231 nm in aqueous base at 1 mM
466 at 230 nm in aqueous acid at 1 mM
68 at 278 nm in aqueous acid at 1 mM

Quality Level

200

Gene Information

human ... ITGA2B(3674), ITGB3(3690), PTGS1(5742), PTGS2(5743)

Looking for similar products? Visit Product Comparison Guide

Biochem/physiol Actions

Blocks the production of prostaglandins by inhibiting cyclooxygenase (prostaglandin H synthase), with greater selectivity toward the COX-1 isoform. The antithrombotic effect is due to the inhibition of COX-1 in platelets that blocks thromboxane production and platelet aggregation. Chemopreventive against colorectal and other solid tumors.

General description

Acetylsalicylic acid is an organic compound commonly referred to as aspirin. It works by blocking the production of compounds in the body that cause pain, swelling, and fever. Acetylsalicylic acid also serves a vital function in preventing blood clots from forming in the arteries. In research, acetylsalicylic acid is studied for its role in oxidative stress, and in cancer research as a biomarker.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

482.0 °F

flash_point_c

250 °C

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
WXBD6619V
SLCL7000
WXBD5651V
WXBD4976V
SLCJ5511

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Seung-Hwan Jung et al.
Redox biology, 37, 101751-101751 (2020-10-21)
Treatment with nonsteroidal anti-inflammatory drugs (NSAIDs) is associated with various side effects, including cardiovascular and hepatic disorders. Studies suggest that mitochondrial damage and oxidative stress are important mediators of toxicity, yet the underlying mechanisms are poorly understood. In this study
Niels Hulsman et al.
Journal of medicinal chemistry, 50(10), 2424-2431 (2007-04-20)
Hybrid drug 1 (NO-ASA) continues to attract intense research from chemists and biologists alike. It consists of ASA and a -ONO2 group connected through a spacer and is in preclinical development as an antitumor drug. We report that, contrary to
Christina Perneby et al.
Thrombosis and haemostasis, 95(4), 652-658 (2006-04-08)
Aspirin is widely used, but dosages in different clinical situations and the possible importance of "aspirin resistance" are debated. We performed an open cross-over study comparing no treatment (baseline) with three aspirin dosage regimens--37.5 mg/day for 10 days, 320 mg/day
Katarzyna Palus et al.
PloS one, 10(11), e0143661-e0143661 (2015-11-26)
This experiment was designed to establish the localization and neurochemical phenotyping of sympathetic neurons supplying prepyloric area of the porcine stomach in a physiological state and during acetylsalicylic acid (ASA) induced gastritis. In order to localize the sympathetic perikarya the
Gregg W Stone et al.
Lancet (London, England), 382(9892), 614-623 (2013-07-31)
The relation between platelet reactivity and stent thrombosis, major bleeding, and other adverse events after coronary artery implantation of drug-eluting stents has been incompletely characterised. We aimed to determine the relation between platelet reactivity during dual therapy with aspirin and
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service