Polyether_Polyether Polyol Knowledge N-methyl-N-nitrosourea

N-methyl-N-nitrosourea

N-methyl-N-nitrosourea structural formula

Structural formula

Business number 078V
Molecular formula C2H5N3O2
Molecular weight 103.08
label

Nitrosourea,

N-methyl-N-nitrosourea,

1-Methyl-1-nitrosourea,

Methylnitrosourea,

N-nitroso-N-methylurea,

MNU,

N-Methyl-N-nitrosourea,

Dexamethasone acetate intermediate

Numbering system

CAS number:684-93-5

MDL number:MFCD00014794

EINECS number:211-678-4

RTECS number:YT7875000

BRN number:None

PubChem number:24897498

Physical property data

1. Character:.


2. Density (g/mL,25/4):


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


4. Melting point (ºC):


5. Boiling point (ºC,Normal pressure):


6. Boiling point (ºC,5.2kPa): 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. Saturated vapor��(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/Logarial value of the partition coefficient of water: undetermined


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


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


19. Solubility:.

Toxicological data

None

Ecological data

None

Molecular structure data


1. Molar refractive index:22.20


2. Molar Volumem3/mol)70.2


3. isotonic ratio90.2K 196.4


4. Surface tensiondyne/cm61.1


5. Dielectric constant:


6. Dipole moment10-24cm3


7. Polarizability:8.80

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: 3

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: 2

6. Topological molecule polar surface area 75.8

7. Number of heavy atoms: 7

8. Surface charge: 0

9. Complexity: 90.9

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

None

Storage method

None

Synthesis method

It is prepared by boiling methylamine, concentrated hydrochloric acid, water and urea, cooling and reacting with sodium hydroxide.

Purpose

Intermediate of dexamethasone acetate. Laboratory used to produce diazomethane.

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.polyether-factory.com/archives/20134

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