69-46-5

Basic information

• Product Name: Calcium aspirin
• Synonyms: CALCIUM ACETYLSALICYLATE;calcium aspirin;calcium bis(O-acetylsalicylate);Ascal;Aspirin, calcium salt;Dispril;Kalsetal;O-Acetylsalicylic acid calcium salt
• CAS NO: 69-46-5
• Molecular Formula: 2C₉H₇O₄*Ca
• Molecular Weight: 398.38
• EINECS: 200-707-6
• Product Categories: Pharmaceutical Intermediates
• Mol File: 69-46-5.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 321.4ºCat 760 mmHg
• Flash Point: 131.2ºC
• Appearance: /
• Vapor Pressure: 0.000124mmHg at 25°C
• CAS DataBase Reference: Calcium aspirin(CAS DataBase Reference)
• NIST Chemistry Reference: Calcium aspirin(69-46-5)
• EPA Substance Registry System: Calcium aspirin(69-46-5)

Safety Data

• Hazardous Substances Data: 69-46-5(Hazardous Substances Data)

Usage

General Description

Calcium aspirin is a compound that combines calcium and aspirin in a salt form. Aspirin is a non-steroidal anti-inflammatory drug (NSAID) that is commonly used to relieve pain, reduce inflammation, and lower fever. It works by inhibiting the production of prostaglandins, which are chemicals in the body that cause pain and inflammation. Calcium, on the other hand, is an essential mineral that is important for bone health, muscle function, and nerve transmission. The combination of calcium and aspirin in a single compound may be used to provide both the pain-relieving and anti-inflammatory effects of aspirin, while also providing the benefits of calcium for bone health. However, it is important to consult a physician before using calcium aspirin, as it may interact with other medications or have potential side effects.

InChI:InChI=1/2C9H8O4.Ca/c2*1-6(10)13-8-5-3-2-4-7(8)9(11)12;/h2*2-5H,1H3,(H,11,12);/q;;+2/p-2

Synthetic route

calcium acetate (62-54-4) + aspirin (50-78-2) → calcium O-acetylsalicylate (69-46-5)

Conditions	Yield
With methanol; water
With water; acetone

aspirin (50-78-2) → calcium O-acetylsalicylate (69-46-5)

Conditions	Yield
With ammonium perchlorate; calcium(II) ion for 35h; Equilibrium constant; ΔS, ΔH, ΔG, pH=4.8, μ=0.5, other temp.;
With pyridine; ethanol; calcium chloride
With methanol; ammonia; calcium chloride

acetylsalicylate sodium → calcium O-acetylsalicylate (69-46-5)

Conditions	Yield
With methanol; calcium(II) nitrate; water
With methanol; ethanol; calcium(II) nitrate

aspirin (50-78-2) + calcium alcoholate → calcium O-acetylsalicylate (69-46-5)

Conditions	Yield
With ethanol

aspirin (50-78-2) + calcium carbonate → calcium O-acetylsalicylate (69-46-5)

Conditions	Yield
With water

calcium O-acetylsalicylate (69-46-5) → aspirin (50-78-2)

Conditions	Yield
With ammonium perchlorate for 35h; Equilibrium constant; ΔS, ΔG, ΔG, pH=4.8, μ=0.5, other temp.;

calcium O-acetylsalicylate (69-46-5) + urea (57-13-6) → bis(2-acetoxybenzoic acid) calcium urea (3063-60-3, 5749-67-7)

Conditions	Yield
In water for 0.0833333h; Industrial scale;	89.6 kg

Upstream product

• 50-78-2 aspirin 
• 62-54-4 calcium acetate 

Downstream Products

• 50-78-2 aspirin 
• 3063-60-3 bis(2-acetoxybenzoic acid) calcium urea 

Relevant articles and documents

Method for preparing bi (2-micristin) calcium urea compound

The invention belongs to the technical field of drug synthesis and particularly relates to a method for preparing a bi (2-micristin) calcium urea compound.The method includes the steps that an acetylsalicylic acid compound (III) is added to aqueous suspension of calcium carbonate in a stirring condition, a reaction is conducted, and an acetylsalicylic acid calcium compound (II) is obtained; urea is added without separation for a complex reaction, reaction mixed liquid is subjected to filter pressing and decompression concentration, and a crude product of a bi (2-micristin) calcium urea compound (I) is obtained; posttreatment is conducted, and a fine product of the bi (2-micristin) calcium urea compound (I) is obtained.The method is stable in process, mild in reaction condition, easy to control, short in production cycle, low in energy consumption, high in yield and stable in product quality, the HPLC content is 99.8% and above, and the single biggest impurity salicylic acid is smaller than 0.1%, posttreatment is simple and convenient, recycled solvent can be continuously applied mechanically, waste gas, wastewater and solid waste are less, production cost is low, and the method is suitable for industrial production.