Toluene diisocyanate manufacturer Knowledge 7-(β-Hydroxyethyl)theophylline

7-(β-Hydroxyethyl)theophylline

7-(β-hydroxyethyl)theophylline structural formula

Structural formula

Business number 05CF
Molecular formula C9H12N4O3
Molecular weight 224.22
label

1,3-Dimethyl-7-(2-hydroxyethyl)xanthine

Numbering system

CAS number:519-37-9

MDL number:MFCD00055055

EINECS number:208-269-8

RTECS number:XH5850000

BRN number:None

PubChem ID:None

Physical property data

1. Character: white solid


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


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


4. Melting point (ºC):163


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


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


7. Refractive index: Undetermined


8. Flash Point (ºF): Undetermined


9. Specific optical rotation (º): Undetermined


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


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


12. Saturated 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:Easily soluble in water and ethanol

Toxicological data

1. Acute toxicity: Rat oral LD50: 710mg/kg, liver and other changes;


Rat subcutaneouslyLD50: 176mg/kg, no details except lethal dose;


Rat intravenous LD50: 486mg /kg, no details except lethal dose;


Orally administered to miceLD: 400mg/kg, no details except lethal dose;


Mouse transperitonealLD50: 400mg/kg, no details except lethal dose;


Mouse subcutaneouslyLD50: 400 mg/kg, BehaviorConvulsion or epilepsy, affecting the lungs, chest, or breathingRespiratory irritation, skin and appendagesSweating;


Mouse intravenouslyLD50: 344mg/kg, no details except lethal dose;


2 , Reproductive toxicity: ratsDOSETransperitoneally TDLo: 90 days before female mating: 90gm/ kgSEX/DURATION, affecting the maternal uterus, cervix, and vagina.

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:56.02


2. Molar volume (m3/mol):147.7


3. Isotonic specific volume (90.2K):416.3


4. Surface tension (dyne/cm):63.1


5. Polarizability10-24cm3 ): 22.21

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): None

2. Number of hydrogen bond donors: 1

3. Number of hydrogen bond acceptors: 4

4. Number of rotatable chemical bonds: 2

5. Number of tautomers: none

6. Topological molecule polar surface area 78.7

7. Number of heavy atoms: 16

8. Surface charge: 0

9. Complexity: 322

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

Use and store according to specifications, Will not decompose, avoid contact with oxides

Storage method

Stored in a cool, dry, well-ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. The packaging is sealed. They should be stored separately from acids and food chemicals, and avoid mixed storage. Suitable materials should be available in the storage area to contain spills.

Synthesis method

None

Purpose

Intermediates of polyester

Resource:allhdi.com

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemicalchem.com/archives/31053

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