HQDA

Base Information

Chemical Name:HQDA
CAS No.:17828-53-4
Molecular Formula:C22H10 O8
Molecular Weight:402.317
Hs Code.:
Mol file:17828-53-4.mol

Synonyms:Phthalicanhydride, 4,4'-(p-phenylenedioxy)di- (8CI);1,4-Bis(3,4-dicarboxyphenoxy)benzene dianhydride;1,4-Diphenoxybenzene-3',4',3'',4''-tetracarboxylic acidanhydride;4,4'-(4,1-Phenylenedioxy)bis[phthalic anhydride];4,4'-(p-Phenylenedioxy)bis[phthalic anhydride];

Suppliers and Price of HQDA

Supply Marketing:

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

SynQuest Laboratories
1,4-Bis(3,4-dicarboxyphenoxy)benzenedianhydride
1 g
$ 195.00

SynQuest Laboratories
1,4-Bis(3,4-dicarboxyphenoxy)benzenedianhydride
5 g
$ 495.00

American Custom Chemicals Corporation
HQDA 95.00%
5MG
$ 495.81

Ambeed
5,5'-(1,4-Phenylenebis(oxy))bis(isobenzofuran-1,3-dione) 98%
5g
$ 403.00

Ambeed
5,5'-(1,4-Phenylenebis(oxy))bis(isobenzofuran-1,3-dione) 98%
1g
$ 128.00

Ambeed
5,5'-(1,4-Phenylenebis(oxy))bis(isobenzofuran-1,3-dione) 98%
250mg
$ 52.00

Total 69 raw suppliers

Chemical Property of HQDA

Chemical Property:

Melting Point:251-252 oC
Boiling Point:638.9±50.0 °C(Predicted)
PSA：105.20000
Density:1.566
LogP:3.89240
Storage Temp.:2-8°C Refrigerator

Purity/Quality:

≥99% ^*data from raw suppliers

1,4-Bis(3,4-dicarboxyphenoxy)benzenedianhydride ^*data from reagent suppliers

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:: SDS file from LookChem

Useful:

Technology Process of HQDA

There total 6 articles about HQDA which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 90.0%

: C₃₈H₄₆O₁₀

: 17828-53-4
1,4-bis(3,4-dicarboxyphenoxy)benzene dianhydride

Guidance literature:: at 250 ℃; for 10h;

Reference yield:

: 17828-53-4
1,4-bis(3,4-dicarboxyphenoxy)benzene dianhydride

Guidance literature:

Reference yield:

: 89-20-3
4-chlorophthalic acid

: 123-31-9,8027-02-9
hydroquinone

: 17828-53-4
1,4-bis(3,4-dicarboxyphenoxy)benzene dianhydride

Guidance literature:: Multi-step reaction with 2 steps

1.1: toluene-4-sulfonic acid / 5,5-dimethyl-1,3-cyclohexadiene / 80 °C

1.2: 6 h / 150 °C / Inert atmosphere; Reflux

2.1: 10 h / 250 °C

With toluene-4-sulfonic acid; In 5,5-dimethyl-1,3-cyclohexadiene;