| Customization: | Available |
|---|---|
| CAS No.: | 63889-27-0 |
| Formula: | C6h14clno2s |
|
Still deciding? Get samples of US$ 27/kg
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
| Vitamin U is iodomethyl-methyl-thio-butyl acid. Found in cabbage, cabbage, kale, lettuce, alfalfa and other green leafy vegetables. It has a special smell, salty and bitter. It's not stable in the light or in the air. Soluble in water, insoluble in ethanol and ether. The aqueous solution is acidic.It is mainly used to treat gastric ulcer and duodenal ulcer. It can be prepared by the reaction of methionine with iodomethane. However, it should be noted that iodomethyl-methyl-thio-butyl acid has certain side effects, which may cause short-term dry mouth, dysuria, dilated pupils, constipation and other adverse reactions. |
|
Analysis
|
Specification
|
Result
|
Test method
|
|
Physical Description
|
|
|
|
| Appearance | White Powder | White Powder |
Visual
|
|
Odor
|
Characteristic
|
Characteristic
|
Organoleptic
|
|
Particle size
|
90% pass 80 mesh
|
90% pass 80 mesh
|
80 Mesh Screen
|
|
Chemical Tests
|
|
|
|
|
Assay (Lutein)
|
99% | 99% |
HPLC
|
|
Loss on drying
|
5.0% Max
|
1.35%
|
5g/105ºC/2hrs
|
|
Ash Contents
|
5.0% Max
|
1.20%
|
2g/525ºC/3hrs
|
|
Residual Solvents
|
50.0 ppm, Only Ethanol
|
<30.0 ppm
|
/
|
|
Heavy metals
|
5.0 ppm Max
|
<3.0 ppm
|
AAS
|
|
Lead
|
3.0 ppm Max
|
<1.0 ppm
|
AAS
|
|
Arsenic
|
3.0 ppm Max
|
<1.0 ppm
|
AAS
|
|
Microbiology Control
|
|
|
|
|
Total Bacteria Count
|
1,000cfu/g Max
|
<280cfu/g
|
AOAC
|
|
Yeast & Mold
|
100cfu/g Max
|
<10cfu/g
|
AOAC
|
|
Coliform
|
30.0 MPN/g Max
|
<3.0 MPN/g
|
AOAC
|
|
Conclusion
|
Complies with the standards.
|
||
|
General Status
|
ISO Certificated.
|
||
){kind=link}