CHROMOTROPE 2R
Synonym(s):2-(Phenylazo)chromotropic acid disodium salt;Acid Red 29
- CAS NO.：4197-07-3
- Empirical Formula: C16H10N2Na2O8S2
- Molecular Weight: 468.37
- MDL number: MFCD00003955
- EINECS: 224-085-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-07-31 17:39:26
What is CHROMOTROPE 2R?
Chemical properties
dark brown powder
The Uses of CHROMOTROPE 2R
Suitable for modified Gomori Trichrome stain
The Uses of CHROMOTROPE 2R
Employed as an indicator for complexometry. It is also applied as a stain used in modified Gomori Trichrome stain. Used as a stain for cytology.
What are the applications of Application
Chromotrope 2R is a stain used in modified Gomori Trichrome stain
Definition
ChEBI: An organic sodium salt that is the disodium salt of 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonic acid. It is used as the plasma stain in trichrome techniques.
Preparation
aniline diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid?coupling.
Properties and Applications
red. Soluble in water for red orange, soluble in soluble fiber element, moderate soluble in alcohol and acetone is red light purple, insoluble in other organic solvents. The strong sulfuric acid for wine red, diluted into pink; In nitric acid solution for red, and then to orange. Add hydrochloric acid in aqueous solution for the red orange; Add thick sodium hydroxide solution for deep red wine.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4-5 | 2 | 2 | 1 | 2 | |||
| AATCC | 4-5 | 2-3 | 1 | 1 | 2-3 | |||
Properties of CHROMOTROPE 2R
| storage temp. | Store at RT. |
| form | Crystalline Powder |
| Colour Index | 16570 |
| color | Reddish-brown |
| Water Solubility | Soluble in water (1 mg/ml). |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
Safety information for CHROMOTROPE 2R
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for CHROMOTROPE 2R
CHROMOTROPE 2R manufacturer
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