ChemicalBook > CAS DataBase List > 4,5-DIMETHOXY-ISATOIC ANHYDRIDE

4,5-DIMETHOXY-ISATOIC ANHYDRIDE

Product Name: 4,5-DIMETHOXY-ISATOIC ANHYDRIDE
CAS No.: 20197-92-6
Chemical Name: 4,5-DIMETHOXY-ISATOIC ANHYDRIDE
Synonyms: 6,7-DIMETHOXYISATOIC ANHYDRIDE;4,5-DIMETHOXY-ISATOIC ANHYDRIDE;6,7-dimethoxy-2H-3,1-benzoxazine-2,4(1H)-dione;6,7-DIMETHOXY-1H-BENZO[D][1,3]OXAZINE-2,4-DIONE;4,5-Dimethoxy-isatoic anhydride, CAS 20197-92-6;2H-3,1-Benzoxazine-2,4(1H)-dione, 6,7-dimethoxy-;6,7-Dimethoxy-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione;4,5-DIMETHOXY-ISATOIC ANHYDRIDE4,5-DIMETHOXY-ISATOIC ANHYDRIDE
CBNumber: CB6298634
Molecular Formula: C10H9NO5
Formula Weight: 223.18
MOL File: 20197-92-6.mol

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4,5-DIMETHOXY-ISATOIC ANHYDRIDE Property

Melting point:: 255 °C(Solv: 1,4-dioxane (123-91-1))
Density: 1.358±0.06 g/cm3(Predicted)
storage temp.: Inert atmosphere,Room Temperature
solubility: DMSO (Slightly), Methanol (Slightly)
form: Solid
pka: 9.93±0.20(Predicted)
color: Pale Beige to Light Beige
CAS DataBase Reference: 20197-92-6(CAS DataBase Reference)

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Safety

HazardClass: IRRITANT
HS Code: 2934999090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

TRC

Product number: D470613
Product name: 4,5-Dimethoxyisatoicanhydride
Packaging: 250mg
Price: $45
Updated: 2021/12/16

Oakwood

Product number: 011695
Product name: 4,5-Dimethoxy-isatoicanhydride
Purity: 95%
Packaging: 250mg
Price: $19
Updated: 2021/12/16

Oakwood

Product number: 011695
Product name: 4,5-Dimethoxy-isatoicanhydride
Purity: 95%
Packaging: 1g
Price: $28
Updated: 2021/12/16

Matrix Scientific

Product number: 039854
Product name: 6,7-Dimethoxy-2H-3,1-benzoxazine-2,4(1H)-dione
Packaging: 1g
Price: $39
Updated: 2021/12/16

Matrix Scientific

Product number: 039854
Product name: 6,7-Dimethoxy-2H-3,1-benzoxazine-2,4(1H)-dione
Packaging: 5g
Price: $134
Updated: 2021/12/16

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4,5-DIMETHOXY-ISATOIC ANHYDRIDE Chemical Properties,Usage,Production

Synthesis

501-53-1

5653-40-7

20197-92-6

The general procedure for the synthesis of 6,7-dimethoxy-2H-benzo[d][1,3]oxazine-2,4(1H)-diones from benzyl chloroformate and 2-amino-4,5-dimethoxybenzoic acid is as follows: 1. 2-Amino-4,5-dimethoxybenzoic acid (25 g, 0.13 mol) was dissolved in tetrahydrofuran (THF, 400 mL). 2. Benzyl chloroformate (54 mL, 0.38 mol) was added slowly with vigorous stirring. 3. The reaction mixture was refluxed overnight, followed by evaporation to dryness and further removal of residual solvent under vacuum. 4. Ether (425 mL) was added to the residue followed by phosphorus tribromide (PBr3, 11.88 mL, 0.13 mol). 5. The mixture was refluxed for 48 hours, after which the reaction mixture was filtered and the solid was washed with ether (3 × 150 mL). 6. The residue was redissolved in ether, stirred for 1 h and then filtered, washed and dried to give 27 g of a white powdery product, 6,7-dimethoxy-2H-benzo[d][1,3]oxazine-2,4(1H)-dione. Yield: 96%. 1H NMR (DMSO-d6, 200 MHz): δ 3.82 (s, 3H, OCH3), 3.88 (s, 3H, OCH3), 6.66 (s, 1H, Ar), 7.27 (s, 1H, Ar), 11.58 (s, 1H, exchangeable NH).

References

[1] Patent: US2006/128695, 2006, A1. Location in patent: Page/Page column 20

4,5-DIMETHOXY-ISATOIC ANHYDRIDE Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 4,5-DIMETHOXY-ISATOIC ANHYDRIDE manufacturers

Career Henan Chemical Co

Product: 4,5-DIMETHOXY-ISATOIC ANHYDRIDE 20197-92-6
Price: US $3.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 100KG
Release date: 2020-02-04

20197-92-6, 4,5-DIMETHOXY-ISATOIC ANHYDRIDERelated Search:

Trimellitic Anhydride 7-METHOXY-1H-BENZO[D][1,3] OXAZINE-2,4-DIONE 5-METHOXYISATOIC ANHYDRIDE 5-HYDROXY ISATOIC ANHYDRIDE 4,5-DIMETHOXY-ISATOIC ANHYDRIDE

6,7-DIMETHOXY-1H-BENZO[D][1,3]OXAZINE-2,4-DIONE

6,7-DIMETHOXYISATOIC ANHYDRIDE

4,5-DIMETHOXY-ISATOIC ANHYDRIDE

6,7-dimethoxy-2H-3,1-benzoxazine-2,4(1H)-dione

4,5-DIMETHOXY-ISATOIC ANHYDRIDE4,5-DIMETHOXY-ISATOIC ANHYDRIDE

2H-3,1-Benzoxazine-2,4(1H)-dione, 6,7-dimethoxy-

6,7-Dimethoxy-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione

4,5-Dimethoxy-isatoic anhydride, CAS 20197-92-6

20197-92-6