Orcinol monohydrate
SIAL/O1875 - colorimetric detection reagent
Synonym: 3,5-Dihydroxytoluene; 5-Methylresorcinol
CAS Number: 6153-39-5
Empirical Formula (Hill Notation): C7H8O2 · H2O
Molecular Weight: 142.15
EC Number: 207-984-2
MDL Number: MFCD00149092
Linear Formula: CH3C6H3-1,3-(OH)2 · H2O
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: O1875-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: O1875-5G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: O1875-10G
| application(s) | diagnostic assay manufacturing hematology histology |
| assay | ≥99% (HPLC) |
| biological source | synthetic |
| bp | 290 °C (lit.) |
| color | white to light brown |
| density | 1.290 g/cm3 |
| form | powder |
| InChI | 1S/C7H8O2.H2O/c1-5-2-6(8) |
| InChI key | NBKPNAMTHBIMLA-UHFFFAOYSA |
| mp | 56-58 °C (lit.) |
| Quality Level | 200  |
| SMILES string | O.Cc1cc(O)cc(O)c1 |
| solubility | H2O: 50 mg/mL |
| storage temp. | room temp |
| Application: | Orcinol monohydrate has been used to prepare Bial′s reagent for Bial′s orcinol assay for pentose sugars. It is also used in the preparation of orcinol solution suitable for staining TLC plates and, measuring rhamnolipids in orcinol dye assays. Orcinol monohydrate has been used for the RNA assay. |
| General description: | Orcinol is a small-molecule natural phenol involved in the production of a dye called orcein used for the staining of cells and chromosomes. Orcinol monohydrate is usually used to prepare a colorimetric reagent known as Bial’s reagent for the determination of RNA, DNA, and hexoses. |
| Packaging: | 5, 10, 100 g in poly bottle |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302 - H315 - H319 - H335 |
| Precautionary statements | P301 + P312 + P330 - P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xn |
| Risk Statements | 22-36/37/38 |
| Safety Statements | 26-36 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99% (HPLC) |
| bp | 290 °C (lit.) |
| mp | 56-58 °C (lit.) |
| Density | 1.290 g/cm3 |
| Storage Temp. | room temp |
| UNSPSC | 12171500 |