2987-17-9  Cyclobutanecarboxaldehyde 

Appearance:Off-white powderPurity:99%

Description:A white powder or Pallide-flavens powderValence(on dry basis):3.0EPU/mg min.
PH:5.0～7.0Water Content:6.0%max.
Protein of higher molecular mass:3.0%max.
Pyrogen:Conformity
Abnormal toxity:Conformity
Depressor Substance:Conformity

Appearance:white to light yellow crystalline powderPurity:99%min
Water:0.3%max

Appearance:white flake crystalAssay:99%min
MP:121 to 126 deg C
Residue on ignition:0.5%max
Water:0.5%max

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 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:Off-white powder 
Purity:98%min.

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....