Acetylsalicylic anhydride

Modify Date: 2025-08-20 12:15:38

Acetylsalicylic anhydride structure	Common Name	Acetylsalicylic anhydride
	CAS Number	1466-82-6	Molecular Weight	342.300
	Density	1.3±0.1 g/cm3	Boiling Point	511.2±35.0 °C at 760 mmHg
	Molecular Formula	C₁₈H₁₄O₇	Melting Point	80-83ºC
	MSDS	N/A	Flash Point	226.4±26.0 °C

Name	(2-acetyloxybenzoyl) 2-acetyloxybenzoate
Synonym	More Synonyms

Density	1.3±0.1 g/cm3
Boiling Point	511.2±35.0 °C at 760 mmHg
Melting Point	80-83ºC
Molecular Formula	C₁₈H₁₄O₇
Molecular Weight	342.300
Flash Point	226.4±26.0 °C
Exact Mass	342.073944
PSA	95.97000
LogP	1.33
Vapour Pressure	0.0±1.3 mmHg at 25°C
Index of Refraction	1.568
Storage condition	2-8°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VO0710000

CHEMICAL NAME :: Salicylic acid, acetate, anhydride

CAS REGISTRY NUMBER :: 1466-82-6

BEILSTEIN REFERENCE NO. :: 2015320

LAST UPDATED :: 199612

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C18-H14-O7

MOLECULAR WEIGHT :: 342.32

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2200 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Cardiac - other changes

MUTATION DATA

TYPE OF TEST :: Cytogenetic analysis

TEST SYSTEM :: Rodent - hamster Lung

DOSE/DURATION :: 300 mg/L

REFERENCE :: GMCRDC Gann Monograph on Cancer Research. (Plenum Pub. Corp., 233 Spring St., New York, NY 10013) No. 11- 1971- Volume(issue)/page/year: 27,95,1981

Hazard Codes	Xn: Harmful;
Risk Phrases	22-36/37/38
Safety Phrases	26-36
HS Code	2918990090

Aspirin

CAS#:50-78-2

~72%

Acetylsalicylic...

CAS#:1466-82-6

Literature: Kim; Jang Synthetic Communications, 2001 , vol. 31, # 3 p. 395 - 399

Benzoyl chloride

CAS#:98-88-4

Acetylsalicylic...

CAS#:1466-82-6

Literature: DE231093 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 10, p. 1117 Chemische Berichte, , vol. 43, p. 2990 Chem. Zentralbl., , vol. 82, # I p. 1568

Acetylsalicyloy...

CAS#:5538-51-2

Acetylsalicylic...

CAS#:1466-82-6

Literature: DE201325 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 9, p. 933

(2-acetoxy-benz...

CAS#:36335-42-9

Acetylsalicylic...

CAS#:1466-82-6

Literature: Chemische Berichte, , vol. 43, p. 2990 Chem. Zentralbl., , vol. 82, # I p. 1568 DE224844 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 9, p. 1203

Pyridine

CAS#:110-86-1

(2-acetoxy-benz...

CAS#:36335-42-9

Acetylsalicylic...

CAS#:1466-82-6

acetylsalicylsa...

CAS#:530-75-6

Literature: Chemische Berichte, , vol. 43, p. 2990 Chem. Zentralbl., , vol. 82, # I p. 1568 DE234217 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 10, p. 1118 Chemische Berichte, , vol. 44, p. 438 Chem. Zentralbl., , vol. 109, # I p. 1082

(2-acetoxy-benz...

CAS#:18698-59-4

Acetylsalicylic...

CAS#:1466-82-6

Ethanoic anhydride

CAS#:108-24-7

Literature: US2423569 , ;

Aspirin

CAS#:50-78-2

Acetylsalicyloy...

CAS#:5538-51-2

Acetylsalicylic...

CAS#:1466-82-6

Literature: DE201325 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 9, p. 933

Precursor 6
CAS#:50-78-2 Aspirin CAS#:98-88-4 Benzoyl chloride CAS#:5538-51-2 Acetylsalicyloy... CAS#:36335-42-9 (2-acetoxy-benz...
CAS#:110-86-1 Pyridine CAS#:18698-59-4 (2-acetoxy-benz...
DownStream 4
CAS#:530-75-6 acetylsalicylsa... CAS#:64-19-7 acetic acid CAS#:552-94-3 Salsalate CAS#:108-24-7 Ethanoic anhydride

HS Code	2918990090
Summary	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

2-Acetoxybenzoic anhydride

Salicylic anhydride,diacetate

Acetylsalicylic acid anhydride

O-acetylsalicylic anhydride

Benzoic acid, 2- (acetyloxy)-, anhydride

Aspirin anhydride

2-acetoxy-benzoic acid-anhydride

SALICYLIC ANHYDRIDE DIACETATE

Benzoic acid, 2-(acetyloxy)-, anhydride (9CI)

Contraflu

Vigal

2-Acetoxy-benzoesaeure-anhydrid

Pircan

anhydride de l'acide acetylsalicylique

Acetylsalicylic anhydride

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Acetylsalicylic anhydride
Price: Check
Purity: 97.0%
Delivery: 10 Day
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Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Acetylsalicylic anhydride
Price: ￥1378.0/100mg ￥578.0/25mg
Purity: 98.0%
Delivery: 2 Day
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Acetylsalicylic anhydride
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 1466-82-6
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

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Acetylsalicylic anhydride

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Chemical & Physical Properties

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

Safety Information

Synthetic Route

Precursor & DownStream

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Synonyms

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.