A6532912
OrangeⅠ , Instructor (pH7.6-8.9) , 523-44-4
Synonym(s):
α-Naphthol orange;4-(4-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt;Orange I
CAS NO.：523-44-4
Empirical Formula: C16H11N2NaO4S
Molecular Weight: 350.32
MDL number: MFCD00021510
EINECS: 208-346-6
| Pack Size | Price | Stock | Quantity |
| 25G | RMB31.20 | In Stock |
|
| 100G | RMB93.60 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 260 °C (decomp) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Solid |
| Colour Index | 14600 |
| color | Red to Very Dark Red |
| Merck | 14,6857 |
| BRN | 3826844 |
| IARC | 3 (Vol. 8, Sup 7) 1987 |
| EPA Substance Registry System | C.I. Acid Orange 20 monosodium salt (523-44-4) |
Description and Uses
A labeled form of alpha-Naphthol Orange, also known as Acid Orange 20, which is an organic azo dye.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P301+P312-P302+P352-P304+P340-P305+P351+P338 |
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
| RTECS | DB7085000 |
| HS Code | 32041200 |
| Hazardous Substances Data | 523-44-4(Hazardous Substances Data) |
| Toxicity | LD50 intraperitoneal in rat: 1gm/kg |
