N-(Hydroxymethyl)phthalimide [118-29-6]
Structure
formula:
Synonyms:1H-Isoindole-1,3(2H)-dione, 2-(hydroxymethyl)-
Specification: purity ¡Ý98%
Melting point: 142-145¡æ
uses: intermediates on the synthesis of pesticides, dyes and pigments.
Packing: 25kg/bag
DL-¦Ã-butyrolactone [79-50-5]
Structure
formula:¡¡
synonyms: (+-)-dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-one;D-(-)-Pantoyllactone; DL-alpha-Hydroxy-beta,beta-dimethyl-alpha-butyrolactone;DL-PANTOYLLACTONE;DL-a-Hydroxy-b,b-dimethyl-g-butyrolactone ;
M.F.:C6H10O3
M.W.:130.14
Technical information:
|
Appearance
|
White
or slight yellow crystal
|
| Purity |
95%
97%
|
| Identification |
positive
reaction
|
| Water content |
¡Ü1.0%
|
| Residue on ignition |
¡Ü0.50%
|
| Heavy metal |
¡Ü30ppm
|
| Melting point: |
142-145¡æ
|
| Acidity: |
¡Ü1.0%
|
Uses: intermediates for pharmaceutical
Packing: 50kg/drum
¦Â-alanine [107-95-9]
Structure
formula: 
Synonyms: ¦Â-amino propoinic acid;¦Â-lactamic acid 3-amino propoinic acid;¦Â-amino propoinic acid;3-alanine;¦Â-lactamic acid;BETA-amino
Technical information:
|
Indexname
|
Index
|
| Appearance |
Crystal
powder
|
| Purity |
98%
|
| Melting point |
197-202¡ãC
|
| Chloride |
¡Ü0.02%
|
| Sulphate |
¡Ü0.05%
|
| Ferrous |
¡Ü5ppm
|
| Heavy metal |
¡Ü30ppm
|
| Loss on drying |
¡Ü0.60%
|
| Residueonignition |
¡Ü0.30%
|
| Transparency |
¡Ý98.0%
|
| Ammonium |
¡Ü0.1%
|
Packing: 25kg/drum
