1,2-dibromo-1,1-dichloroethane

1,2-dibromo-1,1-dichloroethane structural formula

Structural formula

Business number 01K6
Molecular formula C2H2Br2Cl2
Molecular weight 256.75
label

1,2-Dibromo-2,2-dichloroethane,

1,2-dibromo-1,1-dichloro-ethane

Numbering system

CAS number:75-81-0

MDL number:MFCD00053228

EINECS number:200-904-7

RTECS number:None

BRN number:None

PubChem ID:None

Physical property data




Toxicological data

1, acute toxicity


?Mouse caliberLD50:205mg/kg


Large Rat InhalationLC50: 83 ppm/6H


Rabbit skinLD50:500mg/kg

Ecological data

None

Molecular structure data

5. Molecular property data:


1. Molar refractive index: 36.44


2. Molar volume (m3/mol??110.7


3. isotonic specific volume (90.2K):287.9


4. Surface Tension (dyne/cm):45.7


5. Polarizability?10-24cm3):14.44

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 3

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 0

4. Number of rotatable chemical bonds: 1

5. Number of tautomers: none

6. Topological molecule polar surface area 0

7. Number of heavy atoms: 6

8. Surface charge: 0

9. Complexity: 44.8

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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Mercaptoacetonaphthamide

Structural formula of mercaptoacetonaphthamide

Structural formula

Business number 0268
Molecular formula C12H11NOS
Molecular weight 217.29
label

Beta-aminonaphthalene thioglycolate,

Thioglycolic acid-beta-naphthylamine,

Mercaptoacetyl-2-naphthylamine,

Thionaphthalene agent,

2-Mercapto-n-2-naphthylacetamide

Numbering system

CAS number:93-42-5

MDL number:None

EINECS number:202-245-0

RTECS number:None

BRN number:None

PubChem ID:None

Physical property data

1. Characteristics: white to ivory needle-like crystals.


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


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


4. Melting point (ºC):111 ?112


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


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: Easily soluble in ethanol, ether, acetone and other organic solvents, but insoluble in water.

Toxicological data

None

Ecological data

None

Molecular structure data

1. Molar refractive index:66.26


2. Molar volume (m3/ mol):170.6


3. Isotonic specific volume (90.2K): 466.7


4. Surface tension (dyne/cm): 55.9


5. Polarizability?10-24cm3):26.26

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 2.7

2. Number of hydrogen bond donors: 2

3. Number of hydrogen bond acceptors: 2

4. Number of rotatable chemical bonds: 2

5. Number of tautomers: 4

6. Topological molecule polar surface area 30.1

7. Number of heavy atoms: 15

8. Surface charge: 0

9. Complexity: 232

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

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

Synthesis method

None

Purpose

Precipitation enrichment agent. Concentration and separation of arsenic, cadmium, copper, mercury, silver, thallium (I), bismuth, rhodium, ruthenium, antimony and lead. Alkalinity test.

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Hoverteric acid

Homovertebrate acid structure

Structural formula

Business number 0267
Molecular formula C10H12O4
Molecular weight 196.2
label

3,4-Dimethoxyphenylacetic acid,

(3,4-Dimethoxyphenyl)acetic acid,

3,4-Dimethoxyphenylacetic acid,

(3,4-dimethoxy)acetic acid,

(3,4-Dimethoxyphenyl)acetic acid

Numbering system

CAS number:93-40-3

MDL number:MFCD00004335

EINECS number:202-244-5

RTECS number:AH0675000

BRN number:1110282

PubChem number:24893270

Physical property data

1. Properties: Products containing one molecule of crystal water are needle-shaped crystals. The product that precipitates from benzene or petroleum ether is anhydrous.

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

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

4. Melting point (ºC): 80?82? (98?99?, anhydrous).

5. Boiling point (ºC, normal pressure): Not determined

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

7. Refractive index: Undetermined

8. Flash point (ºC): Undetermined

9. Specific rotation (º): Undetermined

10. Autoignition point or ignition Combustion 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. Logarithmic 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: Soluble in water, ethanol and ether.

Toxicological data

None

Ecological data

None

Molecular structure data

1. Molar refractive index: 50.72

2. Molar volume (cm3/mol): 164.8

3. Isotonic specific volume (90.2K ): 419.0

4. Surface tension (dyne/cm): 41.7

5. Polarizability (10-24cm3): 20.10

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: 4

5. Number of tautomers: none

6. Topological molecule polar surface area 55.8

7. Number of heavy atoms: 14

8. Surface charge: 0

9. Complexity: 193

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

This product should be kept sealed.

Synthesis method

None

Purpose

Used in organic synthesis. ?

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