| Customization: | Available |
|---|---|
| CAS No.: | 551-92-8 |
| Formula: | C5h7n3o2 |
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Product Name
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1,2-Dimethyl-5-nitroimidazole |
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Appearance
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White powder
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Assay
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10%,20%,40% water soluble,98% fat-soluble Cromolyn (sodium)
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CAS No.
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11032-49-8 |
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Molecular Formula
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C31H40O2 |
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Molecular Weight
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444.648 |
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Melting point
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/ |
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Grade
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Medicine Grade
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Test Method
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HPLC
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Storage
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Store in cool and dry place,keep away from strong light.
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Shelf life
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2 years when properly stored.
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| Item of Analysis | Specification | Results | Test Methods |
| Assay(on the anhydrous basis ) | 98%~101% | 99.20% | HPLC |
| Appearance | White powder | Conform | Visual |
| Identification | |||
| A: IR | Corresponds qualitatively to the reference | Complies | USP41-NF36 |
| B: Color Reaction | A blue color appears | Positive | USP41-NF36 |
| Water(KF) | ≤0.2% | 0.03% | USP41-NF36 |
| Residue on ignition | ≤0.1% | 0.02% | USP41-NF36 |
| Mesh size | Not less than 90% pass 80 mesh | Complies | 80 mesh screen |
| Residual Solvents | Ethanol ≤1000ppm | 18ppm | USP41-NF36 |
| Heavy metals | Inorganic arsenic ≤3μg/g | 0.06μg/g | USP41-NF36 |
| Total Hg ≤3μg/g | <0.01μg/g | USP41-NF36 | |
| Lead ≤1μg/g | 0.09μg/g | USP41-NF36 | |
| Chromatographic purity | Test 1: Coenzyme Q7,Q8,Q9,Q11 and related impurities:≤1.0% Test 2: 2Z isomer and related impurities:≤1.0% Test 1 & Test 2: ≤1.5% Test 3: The single related impurities≤0.3% |
0.37% 0.05% 0.42% 0.25% |
USP41-NF36 |
| Total Plate Count | ≤1000cfu/g | <10 cfu/g | USP41-NF36 |
| Yeast & Mold | ≤100cfu/g | <15 cfu/g | USP41-NF36 |
| E. Coli. | Negative | Negative | USP41-NF36 |
| Salmonelle | Negative | Negative | USP41-NF36 |
| S.aureus | Negative | Negative | USP41-NF36 |
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Q3: How can I get a sample?
A: We can provide free samples for your test.
Q4: Do you have MOQ ?
A: Yes, but low MOQ for sample checking is available.
Q5: How do you garantee the quality?
A: First of all, our quality control will reduce the quality problem to near zero. When the production is finished, they'll take samples from every batch of cargo, and send to our lab for inspection. After passed the inspection, then we will arrange the delivery.
Q6: How about your after-sale service ?
A: If any technical or quality problem after you receive the cargo, you can contact us any time. If the problem caused by us, we will send you free goods for replacement or refund your loss.
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