PRODUCT Properties
| Melting point: | 150-152 °C (lit.) |
| Boiling point: | 257.07°C (rough estimate) |
| Density | 1.3037 (rough estimate) |
| refractive index | 1.5090 (estimate) |
| storage temp. | 2-8°C |
| solubility | Soluble in methanol. |
| pka | 4.4(at 25℃) |
| form | crystalline |
| color | off-white to tan |
| Water Solubility | very faint turbidity |
| Merck | 14,4737 |
| BRN | 2692860 |
| LogP | 0.860 |
| CAS DataBase Reference | 451-13-8(CAS DataBase Reference) |
| EPA Substance Registry System | Benzeneacetic acid, 2,5-dihydroxy- (451-13-8) |
Description and Uses
An intermediate in the metabolism of tyrosine and phenylalanine. Occurs in plants and in the urine of alkaptonurics.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P280a-P304+P340-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P305+P351+P338 |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| WGK Germany | 3 |
| RTECS | AH0589000 |
| TSCA | Yes |
| HS Code | 29182900 |
