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Cas Database

Name	Methyl 5-acetylsalicylate	EINECS	240-532-2
CAS No.	16475-90-4	Density	1.234 g/cm³
PSA	63.60000	LogP	1.38140
Solubility	N/A	Melting Point	62-64 °C(lit.)
Formula	C₁₀H₁₀O₄	Boiling Point	345.4 °C at 760 mmHg
Molecular Weight	194.187	Flash Point	138 °C
Transport Information	N/A	Appearance	white to light yellow-orange crystalline powder
Safety	26-36	Risk Codes	36/37/38
Molecular Structure		Hazard Symbols	Xi
Synonyms	5-Acetyl-2-hydroxybenzoic acidmethyl ester;Salicylicacid, 5-acetyl-, methyl ester (6CI,7CI,8CI);Methyl 3-acetyl-6-hydroxybenzoate;Methyl5-acetyl-2-hydroxybenzoate;NSC 67867;Methyl2-hydroxy-5-acetylbenzoate;5-Acetylsalicylic acid methyl ester;	Article Data	18

Methyl 5-acetylsalicylate Synthetic route

: 67-56-1
methanol

: 13110-96-8
5-acetylsalicylic acid

: 16475-90-4
estere metilico dell'acido 5-acetilsalicilico

Conditions

Conditions	Yield
With sulfuric acid for 24h; Heating;	96%
With thionyl chloride at 65℃; for 24h; Inert atmosphere;

: 2-acetoxy-5-acetyl-benzoic acid methyl ester

: 16475-90-4
estere metilico dell'acido 5-acetilsalicilico

Conditions

Conditions	Yield
With ytterbium(III) triflate In isopropyl alcohol for 20h; Deacetylation; Heating;	95%

: 108-24-7
acetic anhydride

: 119-36-8
methyl salicylate

: 16475-90-4
estere metilico dell'acido 5-acetilsalicilico

Conditions

Conditions	Yield
With aluminium trichloride In dichloromethane for 3h; Friedel-Crafts reaction;	93%
With aluminum (III) chloride In dichloromethane at -5 - 10℃; for 20h; Inert atmosphere;	83.3%
With aluminum (III) chloride In nitrobenzene at 120 - 180℃; for 0.133333h; Temperature; Time; Pressure; Friedel-Crafts Acylation; Microwave irradiation;	100 %Chromat.

: 5-acetyl-2-(3-methyl-but-2-enyloxy)-benzoic acid methyl ester

: 16475-90-4
estere metilico dell'acido 5-acetilsalicilico

Conditions

Conditions	Yield
With ytterbium(III) triflate In nitromethane for 1h; Ambient temperature;	74%

: 72554-64-4
3-acetyl-3',3'-dicyano-5-methoxycarbonylxanthyrone

A: 16475-90-4
estere metilico dell'acido 5-acetilsalicilico

B: 99-93-4
4-Hydroxyacetophenone

Conditions

Conditions	Yield
With water for 3h; Product distribution; Heating; other xanthyrones;	A 41% B 16%

: 72554-63-3
3-acetyl-3'-cyano-3',5-bismethoxycarbonylxanthyrone

A: 16475-90-4
estere metilico dell'acido 5-acetilsalicilico

B: 99-93-4
4-Hydroxyacetophenone

Conditions

Conditions	Yield
With water for 3h; Product distribution; Heating; other xanthyrones;	A 41% B 16%

: 64-19-7
acetic acid

: 119-36-8
methyl salicylate

: 16475-90-4
estere metilico dell'acido 5-acetilsalicilico

Conditions

Conditions	Yield
With PPA at 80℃; for 2h;	20%

: 580-02-9
methyl acetylsalicylate

: 16475-90-4
estere metilico dell'acido 5-acetilsalicilico

Conditions

Conditions	Yield
With aluminium trichloride; nitrobenzene

: 606-45-1
2-methoxybenzoic acid methyl ester

: 75-36-5
acetyl chloride

: 16475-90-4
estere metilico dell'acido 5-acetilsalicilico

Conditions

Conditions	Yield
With carbon disulfide; aluminium trichloride

: 74823-33-9, 78075-03-3
3'-acetyl-3,5,5'-trismethoxycarbonylglaucyrone

: 16475-90-4
estere metilico dell'acido 5-acetilsalicilico

Conditions

Conditions	Yield
With water for 3h; Product distribution; Heating; other glaucyrones;

Methyl 5-acetylsalicylate Chemical Properties

Molecular Structure:

Molecular Formula: C₁₀H₁₀O₄
Molecular Weight: 194.184
IUPAC Name: Methyl 5-acetyl-2-hydroxybenzoate
Synonyms of Methyl 5-acetylsalicylate (CAS NO.16475-90-4): EINECS 240-532-2 ; Benzoic acid, 5-acetyl-2-hydroxy-, methyl ester ; 5-Acetylsalicylic acid methyl ester ; 5-Acetyl-2-hydroxybenzoic acid methyl ester ; 5-Acetyl 2-methylsalicylate ; Methyl 2-hydroxy-5-acetylbenzoate ; Methyl 5-acetyl-2-hydroxybenzoate
CAS NO: 16475-90-4
Classification Code: Aromatic Esters ; Esters ; Phenyls & Phenyl-Het ; Phenyls & Phenyl-Het ; C10 to C11 ; Carbonyl Compounds
Melting point: 62-64 °C
Index of Refraction: 1.547
Molar Refractivity: 49.93 cm³
Molar Volume: 157.2 cm³
Surface Tension: 47.2 dyne/cm
Density: 1.234 g/cm³
Flash Point: 138 °C
Enthalpy of Vaporization: 61.27 kJ/mol
Boiling Point: 345.4 °C at 760 mmHg
Vapour Pressure: 3.1E-05 mmHg at 25°C

Methyl 5-acetylsalicylate Uses

Methyl 5-acetylsalicylate (CAS NO.16475-90-4) is used as a pharmaceutical intermediate.

Methyl 5-acetylsalicylate Safety Profile

Hazard Codes of Methyl 5-acetylsalicylate (CAS NO.16475-90-4): Irritant Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36: Wear suitable protective clothing.
WGK Germany: 3

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