USD $5.00-10.00 / Gram
USD $10.00-100.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $10.00-100.00 / Kilogram
95.0%min
character
|
white or white powder
|
identification
|
have the largest absorption at λ=262±1nm a250/a260=0.70~0.78 a280/a260=0.36~0.42 |
ph |
1.0~2.5 |
clarity and color
|
should be clear and colorless
|
water |
≤10.0% |
heavy metals |
≤0.001% |
total plate count |
≤300cfu/g |
purity (hplc) |
≥95.0% |
assay (on dried basis) |
≥90.0% |