6-Methyl-isatoic anhydride

Modify Date: 2025-08-23 13:35:20

6-Methyl-isatoic anhydride Structure
6-Methyl-isatoic anhydride structure
 Common Name 6-Methyl-isatoic anhydride
CAS Number 4692-99-3 Molecular Weight 392.319
Density 1.6±0.1 g/cm3 Boiling Point 629.6±58.0 °C at 760 mmHg
Molecular Formula C20H12N2O7 Melting Point N/A
MSDS N/A Flash Point 334.6±32.3 °C

 Names

Name 6-methyl isatinic anhydride
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Boiling Point 629.6±58.0 °C at 760 mmHg
Molecular Formula C20H12N2O7
Molecular Weight 392.319
Flash Point 334.6±32.3 °C
Exact Mass 392.064453
PSA 118.13000
LogP 1.87
Vapour Pressure 0.0±1.8 mmHg at 25°C
Index of Refraction 1.691

 Safety Information

Risk Phrases R36/37/38
Safety Phrases 26-36/37/39
HS Code 2934999090

 Synthetic Route

phosgene structure

phosgene

CAS#:75-44-5

2-Amino-5-methylbenzoic acid structure

2-Amino-5-methy...

CAS#:2941-78-8

~83%

6-Methyl-isatoic anhydride Structure

6-Methyl-isatoi...

CAS#:4692-99-3

Literature: Tedesco, Rosanna; Shaw, Antony N.; Bambal, Ramesh; Chai, Deping; Concha, Nestor O.; Darcy, Michael G.; Dhanak, Dashyant; Fitch, Duke M.; Gates, Adam; Gerhardt, Warren G.; Halegoua, Dina L.; Han, Chao; Hofmann, Glenn A.; Johnston, Victor K.; Kaura, Arun C.; Liu, Nannan; Keenan, Richard M.; Lin-Goerke, Juili; Sarisky, Robert T.; Wiggall, Kenneth J.; Zimmerman, Michael N.; Duffy, Kevin J. Journal of Medicinal Chemistry, 2006 , vol. 49, # 3 p. 971 - 983
2-Amino-5-methylbenzoic acid structure

2-Amino-5-methy...

CAS#:2941-78-8

Diphosgene structure

Diphosgene

CAS#:503-38-8

~94%

6-Methyl-isatoic anhydride Structure

6-Methyl-isatoi...

CAS#:4692-99-3

Literature: AVANIR PHARMACEUTICALS Patent: WO2004/74218 A2, 2004 ; Location in patent: Page 97 ;
5-Methylindole structure

5-Methylindole

CAS#:614-96-0

~69%

6-Methyl-isatoic anhydride Structure

6-Methyl-isatoi...

CAS#:4692-99-3

Literature: Nelson, Amber C.; Kalinowski, Emily S.; Czerniecki, Nikolas J.; Jacobson, Taylor L.; Grundt, Peter Organic and Biomolecular Chemistry, 2013 , vol. 11, # 43 p. 7455 - 7457
2-Amino-5-methylbenzoic acid structure

2-Amino-5-methy...

CAS#:2941-78-8

Triphosgene structure

Triphosgene

CAS#:32315-10-9

~73%

6-Methyl-isatoic anhydride Structure

6-Methyl-isatoi...

CAS#:4692-99-3

Literature: Acker, Timothy M.; Khatri, Alpa; Vance, Katie M.; Slabber, Cathryn; Bacsa, John; Snyder, James P.; Traynelis, Stephen F.; Liotta, Dennis C. Journal of Medicinal Chemistry, 2013 , vol. 56, # 16 p. 6434 - 6456
2-Amino-5-methylbenzoic acid structure

2-Amino-5-methy...

CAS#:2941-78-8

Ethyl chloroformate structure

Ethyl chloroformate

CAS#:541-41-3

Acetyl chloride structure

Acetyl chloride

CAS#:75-36-5

~%

6-Methyl-isatoic anhydride Structure

6-Methyl-isatoi...

CAS#:4692-99-3

Literature: Masciadri, Raffaello; Thomas, Andrew W.; Wichmann, Juergen Patent: US2002/103371 A1, 2002 ;
2-Amino-5-methylbenzoic acid structure

2-Amino-5-methy...

CAS#:2941-78-8

Ethyl chloroformate structure

Ethyl chloroformate

CAS#:541-41-3

~82%

6-Methyl-isatoic anhydride Structure

6-Methyl-isatoi...

CAS#:4692-99-3

Literature: Mohiuddin, Ghulam; Reddy, Padala Satyanarayana; Ahmed, Khalil; Ratnam, Chengalvala Venkata Journal of Chemical Research, Miniprint, 1987 , # 7 p. 1839 - 1868
2-Amino-5-methylbenzoic acid structure

2-Amino-5-methy...

CAS#:2941-78-8

Ethyl chloroformate structure

Ethyl chloroformate

CAS#:541-41-3

~51%

6-Methyl-isatoic anhydride Structure

6-Methyl-isatoi...

CAS#:4692-99-3

N/A structure

N/A

CAS#:96498-78-1

Literature: Leiby, Robert W. Journal of Heterocyclic Chemistry, 1984 , vol. 21, p. 1825 - 1832
5-Methylindoline-2,3-dione structure

5-Methylindolin...

CAS#:608-05-9

~%

6-Methyl-isatoic anhydride Structure

6-Methyl-isatoi...

CAS#:4692-99-3

Literature: Panaotovic Journal fuer Praktische Chemie (Leipzig), 1886 , vol. <2>33, p. 58

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

6-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione
5-methylisatoic anhydride
6-methyl-1H-3,1-benzoxazine-2,4-dione
6-methyl-4H-3,1-benzoxazine-2,4(1H)-dione
6-methyl-1H-3,1-benzoxazine-2,4-quinone
6-METHYLISATIN
5-Methyl-1H-benzo[d][1,3]oxazine-2,4-dione
6-Methylisatoic anhydride
6-methyl-1H-benzo[d][1,3]oxazine-2,4-dione
MFCD00797331
BUTTPARK 148 7-03
6-Methyl-isatoic anhydride
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