USD $6.00-9.00 / Gram
USD $5.00-10.00 / Gram
USD $6.00-9.00 / Gram
USD $6.00-9.00 / Gram
USD $5.00-10.00 / Gram
USD $6.00-9.00 / Gram
USD $5.00-10.00 / Gram
USD $5.00-10.00 / Gram
USD $5.00-10.00 / Gram
nicotinamide |
|
product name:nicotinamide
chemical name:pyridine-3-carboxyamide
chemical structural formula:c6h6n2o=122.13
physical character the product is white crystalline powder, odorless or nearly odorless, bitter in taste, freely soluble in water or ethanol, dissolvable in glycerin.
functions and usage : it belongs to vitamin b, participating in metabolism in the body, can be used to prevent pellagra or other niacin defection disease.
packing and storage:
|
|
appearance |
white crystalline powder |
melting point |
128-131°c |
loss on drying |
≤0.5% |
heavy metals |
≤0.003% |
assay |
98.5-101.5% |
standard of feed additive:
item |
index |
appearance |
white crystal powder or granulated powder |
assey% ≥ |
99 |
melting point°c |
128.0 ~ 131.0 |
ph (10% aq. solution) |
5.5 ~ 7.5 |
water % ≤ |
0.1 |
residue on ignition % ≤ |
0.1 |
heavy metal (as pb) % ≤ |
0.002 |
cp2005/usp29/bp2003/ep52
item |
cp2005 |
usp29 |
bp2003 |
ep52 |
appearance |
white crystal power |
|||
assay% |
≥98.5 |
98.5~101.5 |
99.0~101.0 |
99.0~101.0 |
melting point°c |
128 ~131 |
128 ~131 |
128 ~131 |
128 ~131 |
ph |
5.5~7.5 |
|
6.0~7.5 |
6.0~7.5 |
loss on drying% ≤ |
0.5 |
0.5 |
0.5 |
0.5 |
residue on ignition % ≤ |
0.1 |
0.1 |
0.1 |
0.1 |
heavy metal as pb% ≤ |
0.002 |
0.003 |
0.003 |
0.003 |