Benzophenone 2 (BP-2)
Product Name |
2,2′,4,4′-Tetrahydroxybenzophenone |
||
Synonyms |
2,2,4,4-Tetrahydroxybenzophenol;2,2’,4,4’-tetrahydroxy-benzophenon;2,2’,4,4’-tetrehydroxybenzophenone;2,4,2′,4′-Tetrahydroxybenzophenone;2,4,2’,4’-tetrahydroxybenzophenone;Benzophenone, 2,2′,4,4′-tetrahydroxy-;bis(2,4-dihydroxyphenyl)-methanon;Methanone, bis(2,4-dihydroxyphenyl)- |
||
CAS |
|||
Molecular formula |
C13H10O5 |
||
Molecular Weight |
246.22 |
||
Molecular Structure |
|||
Physical and Chemical Properties |
|
||
General Description |
Pale greenish yellow crystalline powder |
||
Usage |
Because of its wide absorption range,BP-2 is particularly suitable for use as a UV-A filter for product protection, particularly to protect colorants against fading.It is also frequently used to improve the stability of perfumes to oxidation. |
||
Packing |
Packed in cardboard drum lined with plastic bags with the net capacity of 25 kg per drum. |
||
Storage condition |
Must be stored in closed containers in dry cool conditions. The shelf life of BP-2 is two years in original, unopened containers. |
||
Specifications |
|||
Items |
Standard |
||
Appearance |
Pale greenish yellow crystalline powder |
||
Specific Extinction (1%,1cm) E345nm |
≥ 580 |
||
Assay(HPLC) |
≥ 99.0 % |
||
Melting Point |
195 ℃ ~ 203 ℃ |
||
Loss on Drying |
≤ 0.50% |
||
Gardner Color |
≤ 3.0 |
||
Turbidity |
≤ 12NTU |