Fluorescence

广告位

Fluorescent structural formula

Structural formula

Business number 05C3
Molecular formula C20H14O5
Molecular weight 334.32
label

None yet

Numbering system

CAS number:518-44-5

MDL number:None

EINECS number:None

RTECS number:None

BRN number:None

PubChem ID:None

Physical property data

1. Character:Light yellow powder


2. Density (g/ cm3,25/4): Undetermined


3 . Relative vapor density (g/cm3,Air=1): Undetermined


4. Melting point (ºC): 125-127


5. Boiling point (ºC,Normal pressure): Undetermined


6. Boiling point (ºC,8kPa): Undetermined


7. Refractive index: Undetermined


8. Flash Point (ºC): Undetermined


9. Specific optical rotation (º): Undetermined


10. Autoignition point or ignition temperature (ºC): Undetermined


11. Vapor pressure (kPa,25ºC): Undetermined


12. Saturation vapor pressure (kPa,60ºC): Undetermined


13. Heat of combustion (KJ/mol): Undetermined


14. Critical temperature (ºC): Undetermined


15. Critical pressure (KPa): Undetermined


16. Oil and water (octanol/Log value of water) partition coefficient: Undetermined


17. Explosion limit (%,V/V): Undetermined


18. Lower explosion limit (%,V/V): Undetermined


19. Solubility:Nearly insoluble in water

Toxicological data

None yet

Ecological data

This substance may be harmful to the environment, and special attention should be paid to water bodies.

Molecular structure data

1 Molar refractive index:90.53


2 Molar volumem3/mol)230.6


3 Isotonic specific volume (90.2K):676.9


4 Surface tensiondyne/cm74.1


5 Polarizability(10-24cm335.89

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 3.7

2. Number of hydrogen bond donors: 3

3. Number of hydrogen bond acceptors: 5

4. Number of rotatable chemical bonds: 2

5. Number of tautomers: 5

6. Topological molecule polar surface area 87

7. Number of heavy atoms: 25

8. Surface charge: 0

9. Complexity: 469

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

Easily oxidized to fluorescein.

Storage method


Should be sealed and stored in a cool, dry place.


Synthesis method

None yet

Purpose

None yet

Resource:allhdi.com

广告位
This article is from the Internet, does not represent the position of Epoxy curing agent, reproduced please specify the source.https://www.dmp-30.vip/archives/119939

author:

Previous article
Next article
Contact Us

Contact us

+86 - 152 2121 6908

Online consultation: QQ交谈

E-mail: info@newtopchem.com

Working hours: Monday to Friday, 9:00-17:30, closed on holidays
Follow wechat
Scan wechat and follow us

Scan wechat and follow us

Follow Weibo
Back to top
Home
Phone
Products
Search