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?-D-methylglucoside

5月 23rd, 2024 News

?-D-methylglucoside structural formula

Structural formula

Business number 02C0
Molecular formula C7H14O6
Molecular weight 194.18
label

?-Methyl-D-glucoside,

Methyl ?-D-glucoside

Numbering system

CAS number:97-30-3

MDL number:MFCD00064086

EINECS number:202-571-3

RTECS number:None

BRN number:81568

PubChem ID:None

Physical property data

1. Properties: white powder.

2. Density (g/mL, 20?): 1.46

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

4. Melting point (ºC): 169-171

5. Boiling point (ºC, normal pressure): 200

6. Boiling point (ºC, kPa): Undetermined

7. Refractive index: 157.5

8. Flash point (ºC): Undetermined

9. Specific rotation (º): 158.9

10. Autoignition point or ignition temperature (ºC): Not determined

11. Vapor pressure (mmHg, 20.2ºC): Not determined

12. Saturated vapor pressure (kPa, ºC): Undetermined

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

14. Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Log value of oil-water (octanol/water) partition coefficient: Undetermined

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

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

19. Solubility: Undetermined

Toxicological data

None

Ecological data

This substance is slightly hazardous to water.

Molecular structure data

1. Molar refractive index: 41.92

2. Molar volume (cm3/mol): 131.9

3. Isotonic specific volume (90.2K ): 379.2

4. Surface tension (dyne/cm): 68.3

5. Polarizability (10-24cm3): 16.61

Compute chemical data

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

2. Number of hydrogen bond donors: 4

3. Number of hydrogen bond acceptors: 6

4. Number of rotatable chemical bonds: 2

5. Number of tautomers: none

6. Topological molecule polar surface area 99.4

7. Number of heavy atoms: 13

8. Surface charge: 0

9. Complexity: 163

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 5

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

Avoid contact with strong oxidizing agents.

Storage method

Store in a cool, ventilated warehouse. Keep away from fire and heat sources. Keep container tightly sealed. should be kept away from oxidizer, do not store together. Equipped with the appropriate variety and quantity of fire equipment. The storage area should be equipped with emergency release equipment and suitable containment materials.

Synthesis method

None

Purpose

Copolymerizer and resin regulator used in the synthesis of polyether and polyester polyols.

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Benzo[a]anthracene

5月 23rd, 2024 News

Benzo[a]anthracene structural formula

Structural formula

Business number 017R
Molecular formula C18C12
Molecular weight 228.29
label

1,2-Benzanthracene,

Tetraphene,

Benz[a]anthracene,

Naphthanthracene,

Aromatic hydrocarbons

Numbering system

CAS number:56-55-3

MDL number:MFCD00003599

EINECS number:200-280-6

RTECS number:CV9275000

BRN number:1909298

PubChem number:24847436

Physical property data

1.Characteristics: White or light yellow flaky crystals. There is yellow-green fluorescence. Can be sublimated.

2. Melting point (ºC): 160.5

3. Refractive index: Undetermined

4. Flash point (ºC): Undetermined

5. Specific rotation (º): Undetermined

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

7. Vapor pressure (kPa , 25ºC): Not determined

8. Saturated vapor pressure (kPa, 60ºC): Not determined

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

10. Critical temperature (ºC): Undetermined

11. Critical pressure (KPa): Undetermined

12. The logarithmic value of the oil-water (octanol/water) partition coefficient: Undetermined

13. Explosion upper limit (%, V/V): Undetermined

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

15. Solubility: soluble in most organic solvents, difficult to Soluble in acetic acid and hot ethanol, insoluble in water.

16. Standard heat of combustion (enthalpy) of crystalline phase (kJ·mol-1): -8969.0

17. Crystal phase standard claims heat (enthalpy) (kJ·mol-1): 170.8

18. Gas-phase standard combustion heat (enthalpy) (kJ·mol-1): -9091.2

19. Gas phase standard claims heat (enthalpy) (kJ·mol-1): 293.0

Toxicological data

None

Ecological data

None

Molecular structure data

1. Molar refractive index: 79.78

2. Molar volume (cm3/mol): 191.7

3. Isotonic specific volume (90.2K ): 518.7

4. Surface tension (dyne/cm): 53.5

5. Dielectric constant (F/m): 3.24

6. Extreme Chemical rate (10-24cm3): 31.62

Compute chemical data

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

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 0

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: none

6. Topological molecule polar surface area 0

7. Number of heavy atoms: 18

8. Surface charge: 0

9. Complexity: 294

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

Storage method

This product should be sealed and stored in a cool, dry place.

Synthesis method

1. This product exists in coal tar, coal tar pitch, creosote, and is pyrolyzed at 700°C by coking, various coal-burning flue gases, automobile engine exhaust, and carbohydrates, amino acids, and fatty acids. Benzo(a)anthracene is present.

2. Obtain flakes from glacial acetic acid or ethanol.

Purpose

Used in organic synthesis. ?

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2,2′-dihydroxy-5,5′-dichlorophenyl sulfide

5月 23rd, 2024 News

2,2'-dihydroxy-5,5'-dichlorophenyl sulfide structural formula

Structural formula

Business number 02BZ
Molecular formula C12H8Cl2O2S
Molecular weight 287.16
label

Bis-(2-hydroxy-5-chlorophenyl) sulfide,

2,2′-Dihydroxy-5,5′-dichlorodiphenyl Sulfide,

Bis(5-chloro-2-hydroxyphenyl) Sulfide

Numbering system

CAS number:97-24-5

MDL number:MFCD00031479

EINECS number:202-568-7

RTECS number:SN0350000

BRN number:None

PubChem ID:None

Physical property data

1. Characteristics: Undetermined

2. Density (g/mL, 20?): Undetermined

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

4. Melting point (ºC): 175

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

6. Boiling point (ºC , kPa): Not determined

7. Refractive index: Not determined

8. Flash point (ºC): Not determined

9. Specific rotation ( º): Not determined

10. Autoignition point or ignition temperature (ºC): Not determined

11. Vapor pressure (mmHg, 20.2ºC): Not determined

12. Saturated vapor pressure (kPa, ºC): Undetermined

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

14. Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Log value of oil-water (octanol/water) partition coefficient: Undetermined

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

18. Explosion lower limit (%, V/V): Undetermined

19. Solubility: Undetermined

Toxicological data

Acute toxicity: mouse peritoneal cavity LDL0: 250mg/kg;

Ecological data

None

Molecular structure data

1. Molar refractive index: 72.18

2. Molar volume (cm3/mol): 180.7

3. Isotonic specific volume (90.2K ): 534.5

4. Surface tension (dyne/cm): 76.4

5. Polarizability (10-24cm3): 28.61

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 4.5

2. Number of hydrogen bond donors: 2

3. Number of hydrogen bond acceptors: 3

4. Number of rotatable chemical bonds: 2

5. Number of tautomers: 5

6. Topological molecule polar surface area 65.8

7. Number of heavy atoms: 17

8. Surface charge: 0

9. Complexity: 231

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. Uncertain number of stereocenters of chemical bonds: 0

15. Covalency??Number of units: 1

Properties and stability

None

Storage method

None

Synthesis method

None

Purpose

None

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