Good Price S-Adenosyl-L-Methionine CAS 29908-03-0

Test item

Specifications

Result

Appearance

White or off-white powder

Conforms

identification

IR:Infrared spectra of the samples were consistent with the reference

Conforms

UV: the biggest absorption at the wavelength 258nm, the shorest absorption at the wavelength 227nm

Conforms

HPLC: correspond to the The retention time of the major peak in the chromatogram of the standard preparation

Conforms

Clarity and color of solution

Conform to requirement

Conforms

Specific rotation

+28 °~+34°

+30.4°

Water

≤3.0%

2.5%

PH(0.4%water solution)

1.8~2.5

2.34

Residue on ignition

≤0.1%(injection); ≤0.2%(Oral)

0.05%

Heavy metals

≤10ppm

<10ppm

SAME content(Anhydrous,HPLC)

50.0%~54.0%
 

51.6%

Adenine

≤0.5%

0.01%

S-adenosyl-L-Homnocystein

≤0.5%

<0.01%

methylthioadenosine

≤0.5%

0.08%

IP-5

≤1.5%

0.76%

The other singal impurities

≤0.1%

0.04%

The other total impurities

≤1.0%

0.13%

Total impurities

≤2.5%

0.98%

(S.S)isomer

60.0%~75.0%

68.4%

1,4-Butanedisulfonate

46.0~49.0%

46.4%

assay

≥97.0%

98.0%

Bacterial  endotoxin

≤0.25EU/g(injection)

<0.25EU/mg

Total bacteria

≤200CFU/g

20 CFU/g

Yeast mold

≤100 CFU/g

28 CFU/g

E.Coli

Negative

conforms

conclusion

Conformed with the requirement