1,3,3-Trimethyl-2-methyleneindoline
Synonym(s):2-Methylene-1,3,3-trimethylindoline;Fischer base;NSC 66176
- CAS NO.：118-12-7
- Empirical Formula: C12H15N
- Molecular Weight: 173.25
- MDL number: MFCD00005813
- EINECS: 204-235-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 04:25:20
What is 1,3,3-Trimethyl-2-methyleneindoline?
Chemical properties
clear red liquid
The Uses of 1,3,3-Trimethyl-2-methyleneindoline
Reactant for:
- Cycloaddition reactions
- Preparation of red photochromic dyes
- Synthesis of photochromic homopolymers via ring-opening metathesis polymerization
What are the applications of Application
1,3,3-Trimethyl-2-methyleneindoline is A reactant for cycloaddition reactions
Properties of 1,3,3-Trimethyl-2-methyleneindoline
| Melting point: | -8 °C |
| Boiling point: | 248 °C (lit.) |
| Density | 0.979 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 215 °F |
| storage temp. | Store below +30°C. |
| solubility | negligible |
| pka | 2.19±0.40(Predicted) |
| form | liquid |
| color | red |
| Specific Gravity | 0.98 |
| Water Solubility | negligible |
| BRN | 131162 |
| CAS DataBase Reference | 118-12-7(CAS DataBase Reference) |
| NIST Chemistry Reference | 1H-Indole, 2,3-dihydro-1,3,3-trimethyl-2-methylene-(118-12-7) |
| EPA Substance Registry System | 1H-Indole, 2,3-dihydro-1,3,3-trimethyl-2-methylene- (118-12-7) |
Safety information for 1,3,3-Trimethyl-2-methyleneindoline
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H400:Hazardous to the aquatic environment, acute hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. |
Computed Descriptors for 1,3,3-Trimethyl-2-methyleneindoline
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