1,3,3-Trimethyl-2-methyleneindoline

Product Name: 1,3,3-Trimethyl-2-methyleneindoline
CAS No.: 118-12-7
Chemical Name: 1,3,3-Trimethyl-2-methyleneindoline
Synonyms: NSC 66176;FISCHER BASE;FISCHERS BASE;FISCHER'S BASE;Trimethyl base;fischer’smethylenebase;Fischer'S methylene base;1,3,3-trimethyl-2-methylindole;1,3,3-Trimethyl-2-methylenindol;1,3,3-Trimethyl-2-Methyleneindole
CBNumber: CB3688838
Molecular Formula: C12H15N
Formula Weight: 173.25
MOL File: 118-12-7.mol

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1,3,3-Trimethyl-2-methyleneindoline Property

Melting point:: -8 °C
Boiling point:: 248 °C (lit.)
Density: 0.979 g/mL at 25 °C (lit.)
refractive index: n20/D 1.577(lit.)
Flash point:: 215 °F
storage temp.: Store below +30°C.
solubility: negligible
form: liquid
pka: 2.19±0.40(Predicted)
Specific Gravity: 0.98
color: red
Water Solubility: negligible
BRN: 131162
InChI: 1S/C12H15N/c1-9-12(2,3)10-7-5-6-8-11(10)13(9)4/h5-8H,1H2,2-4H3
InChIKey: ZTUKGBOUHWYFGC-UHFFFAOYSA-N
SMILES: CN1C(=C)C(C)(C)c2ccccc12
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)

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Safety

Hazard Codes: Xn,N
Risk Statements: 22-38-50/53
Safety Statements: 28-60-61-57-37
RIDADR: UN 3082 9/PG 3
WGK Germany: 2
RTECS: NM1926500
F: 23
TSCA: TSCA listed
HazardClass: 9
PackingGroup: III
HS Code: 29339990
Storage Class: 10 - Combustible liquids
Hazard Classifications: Acute Tox. 4 Oral
Aquatic Acute 1

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H400Very toxic to aquatic life

Precautionary statements

P273Avoid release to the environment.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: M46209
Product name: 1,3,3-Trimethyl-2-methyleneindoline
Purity: 97%
Packaging: 100g
Price: $200
Updated: 2026/03/19

Sigma-Aldrich

Product number: M46209
Product name: 1,3,3-Trimethyl-2-methyleneindoline
Purity: 97%
Packaging: 5g
Price: $30.9
Updated: 2023/06/20

TCI Chemical

Product number: T0879
Product name: 1,3,3-Trimethyl-2-methyleneindoline
Purity: >96.0%(GC)
Packaging: 25mL
Price: $29
Updated: 2026/03/19

TCI Chemical

Product number: T0879
Product name: 1,3,3-Trimethyl-2-methyleneindoline
Purity: >96.0%(GC)
Packaging: 100mL
Price: $51
Updated: 2026/03/19

TCI Chemical

Product number: T0879
Product name: 1,3,3-Trimethyl-2-methyleneindoline
Purity: >96.0%(GC)
Packaging: 500mL
Price: $188
Updated: 2026/03/19

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1,3,3-Trimethyl-2-methyleneindoline Chemical Properties,Usage,Production

Chemical Properties

clear red liquid

Uses

Reactant for:

Cycloaddition reactions
Preparation of red photochromic dyes
Synthesis of photochromic homopolymers via ring-opening metathesis polymerization

1,3,3-Trimethyl-2-methyleneindoline Preparation Products And Raw materials

Raw materials

p-Toluenesulfonic acid 2-Butanone Aniline Indole Phenylhydrazine sulfate Methyl p-toluenesulfonate Phenylhydrazine Dimethyl phthalate Sodium carbonate Sodium metabisulfite Dimethyl sulfate

Preparation Products

ASTRAZON PINK FG Catonic Orange G 2-[2-[4-[(4-ethoxyphenyl)methylamino]phenyl]vinyl]-5-(methoxycarbonyl)-1,3,3-trimethyl-3H-indolium chloride

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1,3,3-Trimethyl-2-methyleneindoline Suppliers

Belgium 3 China 182 Europe 1 France 1 Germany 11 India 4 Japan 5 Slovakia 1 Switzerland 4 The Netherlands 1 United Kingdom 10 United States 26 Global 249

Wuhan Xinyangruihe Chemical Technology Co., Ltd.

Tel: 13720274133
Fax: 027-83850377
Email: 2395204132@qq.com
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J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Alfa Aesar

Tel: 400-6106006
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30123
Advantage: 84

TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386
Fax: 021-67121385
Email: Sales-CN@TCIchemicals.com
Country: China
ProdList: 24529
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Energy Chemical

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Email: sales@jingyan-chemical.com
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Shanghai Hanhong Scientific Co.,Ltd.

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Email: info@hanhongsci.com
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Syntechem Co.,Ltd

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Sichuan Kulinan Technology Co., Ltd

Tel: 400-1166-196 18981987031
Fax: 028-84555506 800101999
Email: cdhxsj@163.com
Country: China
ProdList: 11705
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Tianjin heowns Biochemical Technology Co., Ltd.

Tel: 400 638 7771
Email: sales@heowns.com
Country: China
ProdList: 14435
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View Lastest Price from 1,3,3-Trimethyl-2-methyleneindoline manufacturers

Hebei Chuanghai Biotechnology Co., Ltd

Product: 1,3,3-Trimethyl-2-methyleneindoline 118-12-7
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 100 mt
Release date: 2024-11-25

Career Henan Chemical Co

Product: 1,3,3-Trimethyl-2-methyleneindoline 118-12-7
Price: US $8.00/kg
Min. Order: 1kg
Purity: 98%
Supply Ability: 100KG
Release date: 2018-12-15

118-12-7, 1,3,3-Trimethyl-2-methyleneindolineRelated Search:

1,3,3-Trimethyl-2-methyleneindoline 5-CHLORO-1,3,3-TRIMETHYL-2-METHYLENEINDOLINE 1,3,3-Trimethyl-2-(formylmethylene)indoline 5-CHLORO-1,3,3-TRIMETHYL-2-METHYLENEINDOLINE Indocyanine green 1,1',3,3,3',3'-HEXAMETHYLINDOTRICARBOCYANINE IODIDE Hexacyanine 2 Indoline IR-144 1,1',3,3,3',3'-HEXAMETHYLINDOTRICARBOCYANINE PERCHLORATE 2-METHYLENE-5-NITRO-1,3,3-TRIMETHYLINDOLINE AURORA KA-4741 AURORA KA-4744 2-(7-(1,1-DIMETHYL-3-PHENYL-1H-2(3H)-BENZ<E>INDOLIDENE)-1,3,5-HEPTATRIENYL)-1,1-DIMETHYL-3-PHENYL-1H-BENZ<E>INDOLIUM PERCHLORATE 1,1',3,3,3',3'-HEXAMETHYL-4,4',5,5'-DI-BENZO-2,2'-INDOTRICARBOCYANINE PERCHLORATE 2-(3-(3,3-DIMETHYL-4-NITRO-1-(3-SULFOPROPYL)-1H-2(3H)-INDOLIDENE)-1-PROPENYL)-3,3-DIMETHYL-4-NITRO-1-(3-SULFOPROPYL)-3H-INDOLIUM HYDROXIDE, INNER SALT 2-(7-(3,3-DIMETHYL-1-PHENYL-1H-2(3H)-INDOLIDENE)-1,3,5-HEPTATRIENYL)-3,3-DIMETHYL-1-PHENYL-3H-INDOLIUM PERCHLORATE AURORA KA-3494

FISCHER BASE

FISCHERS BASE

FISCHER'S BASE

1,3,3-TRIMETHYL-2-METHYLENEINDOINE

1,3,3-TRIMETHYL-2-METHYLENE INDOLENINE

1,3,3'-TRIMETHYL-2-METHYLENEINDOLINE

1,3,3-TRIMETHYL-2-METHYLENEINDOLINE

2-METHYLENE-1,3,3-TRIMETHYLINDOLINE

1,3,3-trimethyl-2-methylene-indolin

1,3-Dihydro-1,3,3-trimethyl-2-methyleneindoline

2,3-dihydro-1,3,3-trimethyl-2-methylene-1h-indol

1,3,3-Trimethyl-2-Methyleneindole

Trimethyl base

1,3,3-Trimethyl-2-methyleneindoline, 98.50%

1H-Indole, 2,3-dihydro-1,3,3-trimethyl-2-methylene-

FISCHER'S BASE (1,3,3-TRI-METHYL-2-METHYLENE INDOLINE)

2-Methylene-1,3,3-trimethylindoline, Fischer base

1,3,3-Trimethyl-2-methylideneindole

1,3,3-Trimethyl-2-methylene-1H-indole

2-Methylene-1,3,3-trimethyl-2,3-dihydro-1H-indole

1,3,3-Trimethyl-2-methyleneindoline, 98.5%

1,3,3-TriMethyl-2-Methyleneindoline, 98.5% 100GR

1,3,3-Trimethyl-2-methylenindol

1,3,3-TRIMETHYL-2-METHYLENEINDOLINE, 98+%

1,3,3-Trimethyl-2-methyleneindoline,95%

NSC 66176

2,3-dihydro-1,3,3-trimethyl-2-methylene-1H-Indole

2,3-Dihydro-1,3,3-trimethyl-2-methyleneindoline

fischer’smethylenebase

Fischer'S methylene base

Indoline, 1,3,3-trimethyl-2-methylene-

Indoline, 2-methylene-1,3,3-trimethyl-

1,3,3-TRIMETHYL-2-METHYLENEINDOLINE, FOR PAPER CHROMATOGR.

2-methylene-1,3,3-trimethyl-indolin

1,3,3-Trimethyl-2-methyleneindoline &gt

1,3,3-TRIMETHYL-2-METHYLENEINDOLINE 118-12-7

1,3,3-trimethyl-2-methylindole

118-12-7

Building Blocks

Indoles

TLC Reagents

Heterocyclic Building Blocks

Indole

Intermediates of Dyes and Pigments