Dexpanthenol

Dexpanthenol

Dexpanthenol is the precursor of vitamin B5, so it is also called provitamin B5.

Product Detail

China H&Z® Dexpanthenol Factory


Benzocaine CAS:94-09-7 


Benzocaine Chemical Properties

MF:C9H11NO2

MW:165.19

Melting point :88-90°C

Boiling point :172°C (12.7517 mmHg)

Density :1.17

Solubilityalcohol: soluble1 gm in 5 ml


Benzocaine Specification:


Items

Standards

Analytical results

Appearance

Small,White crystal or powder

white crystal powder

Identification

IR Identification

IR should comply with the standard spectrum.

Conform

HPLC Identification

The retention time of the major peak of the sample solution corres ponds to that of the Standard solution,as obtained in the assay.

Conform

Loss on drying

≤0.5%

0.01%

Residue on ignition

≤0.1%

0.01%

Chloride

No turbidity is produced immediately.

Conform

Related substance(HPLC)

Aminobenzoic≤0.10%

Not detected

Ethyl 4-nitrobenzoate≤0.10%

Not detected

Any other unspecified impurity≤0.10%

Not detected

Total impurities≤1.0%

Not detected

Assay(HPLC)

98.0-102.0%

99.7%

 

 

Elemental Impurities

Pd

≤1ppm

0.003ppm

V

≤10ppm

<0.00021ppm

As

≤1.5ppm

<0.00017ppm

Co

≤5ppm

<0.00005ppm

Ni

≤20ppm

0.00063ppm

Cd

≤0.5ppm

0.00002ppm

Hg

≤3ppm

<0.00006ppm

Pb

≤0.5ppm

<0.0003ppm

Conclusion

Conforms withUSP42.





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