3,4,9,10-tetracarboxylic dianhydride Perylene-3,4,9,10-tetracarboxylic dianhydride
Structural formula
| Business number | 03LQ |
|---|---|
| Molecular formula | C24H8O6 |
| Molecular weight | 392.32 |
| label |
3,4,9,10-Perylenetetracarboxylic anhydride, Pigment Red 224, 3,4,9,10-Perylenetetracarboxylic dianhydride, Pigment Red 224, PTCDA, aromatic compounds |
Numbering system
CAS number:128-69-8
MDL number:MFCD00006916
EINECS number:204-905-3
RTECS number:None
BRN number:57831
PubChem ID:None
Physical property data
1. Properties: Red flashing solid. Brown-red powder.
2. Melting point (℃): >300
3. Solubility: soluble in alkaline solution.
Toxicological data
This product is non-toxic.
Ecological data
None
Molecular structure data
1. Molar refractive index: 109.16
2. Molar volume (cm3/mol): 222.3
3. Isotonic specific volume (90.2K ): 712.1
4. Surface tension (dyne/cm): 105.1
5. Polarizability (10-24cm3): 43.27
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): 4.5
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 6
4. Number of rotatable chemical bonds: 0
5. Number of tautomers: none
6. Topological molecule polar surface area 86.7
7. Number of heavy atoms: 30
8. Surface charge: 0
9. Complexity: 730
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
Properties and stability
Basic properties
Brown-red powder. Melting point＞300℃. Soluble in alkaline solution.
This product is non-toxic.
Storage method
Packaged in a lined plastic bag and coated in a sack or woven bag. 25kg or 50kg per bag. Store in a cool, ventilated and dry place, protected from heat, moisture, sun and fire. Store and transport according to general chemical regulations.
Synthesis method
Tetracarboxylimide is obtained by alkali fusion from 1,8-naphthalimide, and then deamination is performed with concentrated sulfuric acid to remove water to form anhydride. Raw material consumption quota: 1,8-naphthalene anhydride (raw material for preparing 1,8-naphthalene imide) 2120kg/t, potassium hydroxide (96%) 6000kg/t, concentrated sulfuric acid 20000kg/t.
Purpose
Mainly used to synthesize perylene dyes and pigments, to produce advanced vat dyes, fluorescent dyes and advanced organic pigments, such as vat scarlet K, vat scarlet R, permanent red BL, etc., and also used in synthetic resins and plastics.
