451-13-8
Homogentisic acid
CAS: 451-13-8
Molecular Formula: C8H8O4
451-13-8 - Names and Identifiers
451-13-8 - Physico-chemical Properties
| Molecular Formula | C8H8O4 |
| Molar Mass | 168.15 |
| Density | 1.3037 (rough estimate) |
| Melting Point | 150-152°C |
| Boling Point | 257.07°C (rough estimate) |
| Water Solubility | very faint turbidity |
| Solubility | Soluble in methanol. |
| Appearance | crystalline | off-white to tan |
| Color | off-white to tan |
| Merck | 14,4737 |
| BRN | 2692860 |
| pKa | 4.4(at 25℃) |
| Storage Condition | 2-8℃ |
| Refractive Index | 1.5090 (estimate) |
| MDL | MFCD00004324 |
| Physical and Chemical Properties | Bioactive Homogentisic acid is a specific metabolite of metabolites in urine and serum for the diagnosis of urinary acidemia. |
| Use | Product use urinary black acid is a kind of aromatic organic compounds, can be used as pharmaceutical intermediates. |
| Target | Human Endogenous Metabolite |
451-13-8 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| RTECS | AH0589000 |
| TSCA | Yes |
| HS Code | 29182900 |
451-13-8 - Upstream Downstream Industry
| Downstream Products | 3-Hydroxyphenylacetic acid |
451-13-8 - Reference
| Reference Show more | 1. [IF=2.281] Zihui Ma et al."Studies on the biosynthetic pathways of melanin in Auricularia auricula."JOURNAL OF BASIC MICROBIOLOGY |
451-13-8 - Nature
| EPA chemical substance information | Benzeneacetic acid, 2,5-dihydroxy- (451-13-8) |
Last Update：2024-04-10 22:29:15
451-13-8 - Overview
urine black acid, I .e., 2, 5-dihydroxyphenylacetic acid. Urinary acanthuria is abundant in the urine of patients. This urine can become black when contained in air, which is due to the dark black product produced by the natural oxidation of urinary black acid. Urinary black acid is an intermediate metabolite of phenylalanine and tyrosine and is broken down by urinary black acid oxygenase. Urinary acuria is caused by a congenital deficiency of this enzyme.
Last Update：2024-04-09 20:52:54
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