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Acetylsalicylic anhydride

ChemSpider ID: 14382
Molecular Formula: C₁₈H₁₄O₇
Average mass: 342.299591 Da
Monoisotopic mass: 342.073944 Da
Systematic name

2-Acetoxybenzoic anhydride
SMILES and InChIs

SMILES:

O=C(Oc2ccccc2C(=O)OC(=O)c1ccccc1OC(=O)C)C Copied

Std. InChI:

InChI=1S/C18H14O7/c1-11(19)23-15-9-5-3-7-13(15)17(21)25-18(22)14-8-4-6-10-16(14)24-12(2)20/h3-10H,1-2H3 Copied

Std. InChIKey:

OAWXYINGQXLWOE-UHFFFAOYSA-N Copied
Cite this record
CSID:14382, http://www.chemspider.com/Chemical-Structure.14382.html (accessed 00:47, May 23, 2013) Copied

Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Redirected by Users, Redirect Approved by Experts

Aspirin anhydride

2-Acetoxybenzoic anhydride [ACD/IUPAC Name]

Acetylsalicylic anhydride

Benzoic acid, 2- (acetyloxy)-, anhydride

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

SALICYLIC ANHYDRIDE DIACETATE

(2-acetyloxybenzoyl) 2-acetyloxybenzoate

1466-82-6 [RN]

2-(Acetyloxy)benzoic acid anhydride

2-{[(2-acetyloxyphenyl)carbonyl]oxycarbonyl}phenyl acetate

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Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Redirected by Users, Redirect Approved by Experts

01460_FLUKA [DBID]

BRN 2015320 [DBID]

NCIOpen2_008010 [DBID]

NSC 63848 [DBID]

NSC 80056 [DBID]

NSC63848 [DBID]

NSC80056 [DBID]

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Properties

Predicted - ACD/Labs
Predicted - EPISuite
Predicted - ChemAxon

Predicted data is generated using the ACD/Labs’ ACD/PhysChem Suite, for more information see their website.

ACD/LogP:	1.875	# of Rule of 5 Violations:	0
ACD/LogD (pH 5.5):	1.88	ACD/LogD (pH 7.4):	1.88
ACD/BCF (pH 5.5):	15.66	ACD/BCF (pH 7.4):	15.66
ACD/KOC (pH 5.5):	249.42	ACD/KOC (pH 7.4):	249.42
#H bond acceptors:	7	#H bond donors:	0
#Freely Rotating Bonds:	8	Polar Surface Area:	95.97 Å²
Index of Refraction:	1.568	Molar Refractivity:	85.674 cm³
Molar Volume:	261.999 cm³	Polarizability:	33.964 10^-24cm³
Surface Tension:	49.7709999084473 dyne/cm	Density:	1.306 g/cm³
Flash Point:	226.361 °C	Enthalpy of Vaporization:	78.207 kJ/mol
Boiling Point:	511.155 °C at 760 mmHg	Vapour Pressure:	0 mmHg at 25°C

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™, for more information see their website.

                    
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  1.53

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  390.41  (Adapted Stein & Brown method)
    Melting Pt (deg C):  90.87  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  3.96E-006  (Modified Grain method)
    MP  (exp database):  83 deg C
    Subcooled liquid VP: 1.42E-005 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  342.7
       log Kow used: 1.53 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  703.11 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Esters

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.02E-010  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  5.205E-009 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.53  (KowWin est)
  Log Kaw used:  -8.083  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  9.613
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.9329
   Biowin2 (Non-Linear Model)     :   0.9982
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7231  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.8118  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4478
   Biowin6 (MITI Non-Linear Model):   0.1879
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.2572
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  0.00189 Pa (1.42E-005 mm Hg)
  Log Koa (Koawin est  ): 9.613
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.00158 
       Octanol/air (Koa) model:  0.00101 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.0541 
       Mackay model           :  0.113 
       Octanol/air (Koa) model:  0.0745 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   3.7506 E-12 cm3/molecule-sec
      Half-Life =     2.852 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    34.221 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.0833 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  83.63
      Log Koc:  1.922 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
  Total Kb for pH > 8 at 25 deg C :  6.336E+003  L/mol-sec
  Kb Half-Life at pH 8:       1.823  minutes
  Kb Half-Life at pH 7:      18.232  minutes

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.475 (BCF = 2.988)
       log Kow used: 1.53 (estimated)

 Volatilization from Water:
    Henry LC:  2.02E-010 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 5.363E+006  hours   (2.234E+005 days)
    Half-Life from Model Lake :  5.85E+007  hours   (2.438E+006 days)

 Removal In Wastewater Treatment:
    Total removal:               1.98  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.89  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.00241         68.4         1000       
   Water     32.3            900          1000       
   Soil      67.6            1.8e+003     1000       
   Sediment  0.0831          8.1e+003     0          
     Persistence Time: 1.2e+003 hr

Patents	Personal Collections
Publication or Magazine Article	Web-based Article (blog or commentary)
Available Chemicals Databases	Biological Properties
Chemical Reactions	Chemical Safety Data
Drugs or Compounds in Development	Imaging Agents
Information Aggregators	Journal Publishers via MeSH
Ligand/binding/crystal Structure Databases	Metabolic Pathways
Molecular Libraries Screening Center Network	Natural Products
NIH Substance Repository	Physical Properties (including SAR/QSAR databases)
Protein 3D Structures	Spectroscopy Databases
Substance Vendors	Theoretical Properties
Toxicology/Environmental Databases	Virtual Library

Category	Target	PDB Code	LASSO Score
Other Enzymes	COX-1, cyclooxygenase-1	1p4g	0.71
Nuclear Hormone Receptors	PPARg, peroxisome proliferator activated receptor	1fm9	0.08
Other Enzymes	InhA, enoyl ACP reductase	1p44	0.05
Serine Proteases	FXa, factor Xa	1f0r	0.02
Kinases	SRC, tyrosine kinase SRC	2src	0.01
Other Enzymes	HMGR, hydroxymethylglutaryl-CoA reductase	1hw8	0.01
Other Enzymes	NA, neuraminidase	1a4g	0.01
Nuclear Hormone Receptors	MR, mineralocorticoid receptor	2aa2	0.01
Nuclear Hormone Receptors	PR, progesterone receptor	1sr7	0.01
Kinases	VEGFr2, vascular endothelial growth factor receptor	1vr2	0.01
Metalloenzymes	ACE, angiotensin-converting enzyme	1o86	0.01
Nuclear Hormone Receptors	ER, estrogen receptor; antagonist	3ert	0.01
Other Enzymes	PNP, purine nucleoside phosphorylase	1b8o	0.00
Other Enzymes	AmpC, AmpC beta-lactamase	1xgj	0.00
Other Enzymes	HIVPR, HIV protease	1hpx	0.00
Other Enzymes	ALR2, aldose reductase	1ah3	0.00
Nuclear Hormone Receptors	ER, estrogen receptor; agonist	1l2i	0.00
Folate Enzymes	DHFR, dihydrofolate reductase	3dfr	0.00
Other Enzymes	GPB, glycogen phosphorylase	1a8i	0.00
Kinases	FGFr1, fibroblast growth factor receptor kinase	1agw	0.00
Metalloenzymes	COMT, catechol O-methyltransferase	1h1d	0.00
Kinases	CDK2, cyclindependent kinase 2	1ckp	0.00
Nuclear Hormone Receptors	RXRa, retinoic X receptor R	1mvc	0.00
Metalloenzymes	ADA, adenosine deaminase	1stw	0.00
Other Enzymes	AChE, acetylcholinesterase	1eve	0.00
Nuclear Hormone Receptors	AR, androgen receptor	1xq2	0.00
Folate Enzymes	GART, glycinamide ribonucleotide transformylase	1c2t	0.00
Other Enzymes	COX-2, cyclooxygenase-2	1cx2	0.00
Kinases	PDGFrb, platelet derived growth factor receptor kinase	N/A	0.00
Kinases	TK, thymidine kinase	1kim	0.00
Kinases	HSP90, human heat shock protein 90	1uy6	0.00
Other Enzymes	HIVRT, HIV reverse transcriptase	1rt1	0.00
Kinases	P38 MAP, P38 mitogen activated protein	1kv2	0.00
Other Enzymes	PARP, poly(ADP-ribose) polymerase	1efy	0.00
Other Enzymes	SAHH, S-adenosyl-homocysteine hydrolase	1a7a	0.00
Kinases	EGFr, epidermal growth factor receptor	1m17	0.00
Serine Proteases	Thrombin	1ba8	0.00

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Acetylsalicylic anhydride

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