4,4′-Thiobis(6-tert-butyl-o-phenol)

4,4'-Thiobis(6-tert-butyl orthophenol) structural formula

Structural formula

Business number 02BC
Molecular formula C22H30O2S
Molecular weight 358.54
label

None

Numbering system

CAS number:96-66-2

MDL number:MFCD00008823

EINECS number:202-522-6

RTECS number:GP3200000

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): 127

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

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

7. Refractive index: Not determined

8. Flash point (ºC): 241

9. Specific rotation (º ): Undetermined

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

11. Vapor pressure (mmHg, 20.2ºC): Undetermined

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

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

14. Critical temperature (ºC): Undetermined Determined

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

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Toxicological data

Acute toxicity: rat oral LD50: 6340mg/kg; mouse oral LD50: 3mg/kg; mammal oral LD50: 6340mg/kg;

Ecological data

None

Molecular structure data

1. Molar refractive index: 108.82

2. Molar volume (cm3/mol): 320.3

3. Isotonic specific volume (90.2K): 846.3

4. Surface tension (dyne/cm): 48.7

5. Polarizability (10-24cm3): 43.14

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 7.4

2. Number of hydrogen bond donors: 2

3. Number of hydrogen bond acceptors: 3

4. Number of rotatable chemical bonds: 4

5. Number of tautomers: 5

6. Topological molecule polar surface area 65.8

7. Number of heavy atoms: 25

8. Surface charge: 0

9. Complexity: 396

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

None

Purpose

None

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3,4-Dimethoxybenzoic acid

3,4-dimethoxybenzoic acid structural formula

Structural formula

Business number 025Q
Molecular formula C9H10O4
Molecular weight 182.17
label

3,4-Dimethoxybenzoic acid,

veratrid acid,

3,4-dimethoxyformic acid,

3,4-Dimethoxybenzoic acid,

3,4-dimethoxybenzoic acid,

veratrumenoic acid,

3,4-Dimethylprotocatechuic acid

Numbering system

CAS number:93-07-2

MDL number:MFCD00002500

EINECS number:202-215-7

RTECS number:DG8598750

BRN number:518285

PubChem number:24893253

Physical property data

1. Character:Acicular or prismatic crystals. Odorless. Can sublimate (rhombus crystal)


2. Density (g/mL,25/4?)? Undetermined


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


4. Melting point (ºC): 180?181? (anhydrous).


5. Boiling point (ºC,Normal pressure):272


6. Boiling point (ºC,5.2kPa): Undetermined


7. Refractive index: undetermined


8. Flashpoint (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 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 partition coefficient (water): undetermined


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


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


19. Solubility: Soluble in ether, benzene and carbon disulfide, slightly soluble in ethanol, almost insoluble in water.

Toxicological data

None

Ecological data

None

Molecular structure data

1. Molar refractive index: 46.53


2. Molar volume (m3/mol):149.9


3. isotonic specific volume (90.2K):382.7


4. Surface Tension (dyne/cm):42.4


5. Polarizability?10-24cm3):18.44

Compute chemical data

1 , Reference value for hydrophobic parameter calculation (XlogP): 1.6


2 , Number of hydrogen bond donors: 1


3 , Number of hydrogen bond acceptors: 4


4 , Number of rotatable chemical bonds: 3


5 , Number of tautomers:


6? Topological molecular polar surface area ( TPSA): 55.8


7 , Number of heavy atoms: 13


8 , Surface charge: 0


9 , Complexity: 181


10 , Isotope atomic number: 0


11 , Determine the number of atomic stereocenters: 0


12 , Uncertain number of atomic stereocenters: 0


13 , Determine the number of stereocenters of chemical bonds: 0


14 , Uncertain number of chemical bond stereocenters: 0


15 , Number of covalent bond units: 1


Properties and stability

None

Storage method

 ? This product should be sealed and stored in a cool, dry place away from light.

Synthesis method

None

Purpose

For organic synthesis.

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N-methylpyrrole

N-methylpyrrole structural formula

Structural formula

Business number 02BB
Molecular formula C5H7N
Molecular weight 81.12
label

1-methylpyrrole,

1-Methylpyrrol

Numbering system

CAS number:96-54-8

MDL number:MFCD00005345

EINECS number:202-513-7

RTECS number:UX9640000

BRN number:104181

PubChem number:24902047

Physical property data

1. Properties: liquid.

2. Density (g/mL, 20?): 0.914

3. Relative vapor density (g/mL, air=1): 2.8

4. Melting point (ºC): ?57

5. Boiling point (ºC, normal pressure): 112-113

6. Boiling point (ºC, kPa): Undetermined

7. Refractive index: 1.489

8. Flash point (ºC): 15

9. Specific rotation (º): Undetermined

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

11. Vapor pressure (mmHg, 20.2ºC): 15

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) distribution coefficient: Undetermined

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

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

19. Solubility: Undetermined

Toxicological data

Mutagenicity: DNA repair test: Bacillus subtilis, 40600?g/disk;

Ecological data

This substance is slightly hazardous to water.

Molecular structure data

1. Molar refractive index: 26.80

2. Molar volume (cm3/mol): 93.7

3. Isotonic specific volume (90.2K ): 219.1

4. Surface tension (dyne/cm): 29.8

5. Polarizability (10-24cm3): 10.62

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 4.9

7. Number of heavy atoms: 6

8. Surface charge: 0

9. Complexity: 37.2

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

Avoid contact with oxides.

Storage method

Store in a cool, ventilated warehouse. Keep away from fire, heat sources and anti-static. Keep container tightly sealed. should be kept away from oxidizer, do not store together. Equipped with the appropriate variety and quantity of fire equipment. Suitable materials should be available in the storage area to contain spills.

Synthesis method

None

Purpose

It can be used as raw material for organic synthesis and widely used as pharmaceutical intermediates and organic solvents. The intermediate of Tonidine can also be used as dye stabilizer and preservative.

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