2861-28-1  3,4-(Methylenedioxy)phenylacetic acid 

Appearance:white to off white crystalAssay:98%min
MP:128-131deg C
Relate substance:2%max
Water:0.7%max

Appearance:white crystalline powderAssay(HPLC):99.0% min
Clarity of the solution(1mol in 2ml DMF):clear and transparent
Melting point:200degC min
Loss on drying:0.5% max

Specs:
Appearance: Colorless or light yellow transparent liquid
Assay: 98%min

Specs:

Appearance:Colorless transparent liquid

Assay:99%min

Moisture:500ppm max

pH(1:1water solution):6.0~8.0

Specs:
Appearance:White crystal
Purity (GC) :98.0%min
Melting point:86.0-91.0degC
Loss on drying:0.5%max

Specs:

Appearance:Colorless to pale yellow liquid

Assay:95%min(NMR)

Storage:keep it in refrigerator

Shelf life:2~3 months

Specs:

Appearance:White or off-white crystalline powder

Assay:98%min

Moisture:0.5%max

Specs:
Appearance:White or almost white powder
Assay:98%min.
Acidity(PH):3.5-5.5
Loss on drying:0.5%max
Sulfated ash:0.1%max
Heavy metal:20ppm max
Total impurities:1.0% max
CCl4:0.006%max.
Toluene:0.089%max....

Specs:

Appearance:Gray white to off-white powder

Water:0.5%max

Heavy metal:20ppm max

Total impurity:1.0%max

Single impurity:0.1%max

Loss on drying:0.5%max

Assay:99%min

Specs:
USP grade
Appearance:White or off-white powder
Assay(Sodium, dry basis):92%min
Water:5.0%max
PH:6.0 to 7.5
Penicillin G:5.0%max

Spec:
Appearance:White to off-white powder
Assay:98%min.
Isomer impurity:0.1%max

Spec:

Appearance:White to off-white powder

Assay:98%min.

Isomer impurity:0.1%max