Molecular formula:C6H5O2N
CAS CODE：55-22-1
Molecular weight:123.11
Structural formula：
Introduction to the product:
Isonicotinic acid is the major raw material for producing isoniazid , terfenadine and isonicotinic acid osters esters and it can serve as intermediate for other medicine and chemical products.
Quality standard(Factory standard)
|
ITEMS |
STANDARD |
|
GRADE I |
GRADE II |
|
Appearance |
White or almost white powder |
White or almost white powder |
|
Colour index |
≤20 |
|
|
Colour of solution |
|
Not deeper than stanard |
|
Loss on drying |
≤1.0% |
≤1.0% |
|
Residue on ignition |
≤0.15% |
≤0.5% |
|
Related substances |
total |
≤1.0% |
|
|
Any single |
≤0.5% |
|
Assay |
≥99.0% |
≥99.0% |
Packing specification:25kg/cardboard drum Φ330mm x h600mm
