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Big manufacturer of DL-Methionine CAS No.:59-51-8 from China
OverviewQuick DetailsCAS No.:59-51-8Other Names:l-methionineMF:C5H11NO2SEINECS No.:200-432-1FEMA No.:NOPlace of Origin:Hebei, China (Mainlan
$7 /
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DL-Methionine
CAS No.: 59-51-8
MF: C5H11NO2S
Grade Standard: food grade,pharma grade]
Appearance: White crystalline platelets or powder
Quality Standard:
Item |
Specifications |
Results |
Appearance |
White crystalline powder |
Conforms |
Assay,% (on dried matter) | 98.5~101.5 | 99.5 |
Clarity of solution | Clear, colorless | Clear, colorless |
Transmittance,% | 98.0 | 99.4 |
pH value (1g/100mL in water) | 5.4~6.1 | 5.8 |
Chloride(as Cl) ,% max | 0.05 | <0.05 |
Heavy metals (as Pb),% max | 0.002 | <0.002 |
Lead (as Pb),% max | 0.001 | <0.001 |
Arsenic(as As),% max | 0.00015 | <0.00015 |
Sulfate(SO4) max | 0.02 | <0.02 |
Ammonium (as NH4),% max | 0.01 | <0.01 |
Loss on drying,% max | 0.5 | 0.2 |
Residue on ignition (as sulphate ash),% max | 0.1 | 0.06 |
Organic volatile impurities |
meets the requirement |
meets the requirement |
Conclusion :This product conforms to requirements of USP24 standard. | ||
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