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2-Methylindole-3-acetic acid

CAS No.
1912-43-2
Chemical Name:
2-Methylindole-3-acetic acid
Synonyms
2-Me-IAA;AKOS BC-0002;IFLAB-BB F0345-1687;2-METHYL-3-INDOLEACETIC ACID;2-Methylindole-3-acetic acid;2-Methyl Indole-3-acetate Acid;2-Methyl-3-indoleacetic acid 98%;2-Methylindole-3- acetic acid?New;2-(2-Methyl-3-indolyl)acetic Acid;2-METHYLINDOLE-3-ACETIC ACID, 98+%
CBNumber:
CB2286260
Molecular Formula:
C11H11NO2
Molecular Weight:
189.21
MDL Number:
MFCD00075006
MOL File:
1912-43-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:50:37

2-Methylindole-3-acetic acid Properties

Melting point 205 °C (dec.) (lit.)
Boiling point 418.2±30.0 °C(Predicted)
Density 1.299±0.06 g/cm3(Predicted)
storage temp. 2-8°C(protect from light)
solubility DMSO (Slightly), Methanol (Slightly)
pka 4.19±0.30(Predicted)
form Solid
color Pale Brown to Light Brown
BRN 152701
InChI 1S/C11H11NO2/c1-7-9(6-11(13)14)8-4-2-3-5-10(8)12-7/h2-5,12H,6H2,1H3,(H,13,14)
InChIKey QJNNHJVSQUUHHE-UHFFFAOYSA-N
SMILES Cc1[nH]c2ccccc2c1CC(O)=O
CAS DataBase Reference 1912-43-2(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H332-H335
Precautionary statements  P261-P280-P305+P351+P338
PPE Eyeshields, Gloves, type N95 (US)
Hazard Codes  Xi
Safety Statements  22-24/25
WGK Germany  3
HazardClass  IRRITANT
Storage Class 11 - Combustible Solids
NFPA 704
0
0 0

2-Methylindole-3-acetic acid price More Price(40)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 333301 2-Methyl-3-indoleacetic acid 98% 1912-43-2 5g $99.4 2026-04-30 Buy
Usbiological 283047 2-Methylindole-3-acetic acid Asreported 1912-43-2 5g $433 2026-06-03 Buy
Usbiological 283047 2-Methylindole-3-acetic acid Asreported 1912-43-2 10g $609 2026-06-03 Buy
Usbiological 283047 2-Methylindole-3-acetic acid Asreported 1912-43-2 25g $909 2026-06-03 Buy
Usbiological 283047 2-Methylindole-3-acetic acid Asreported 1912-43-2 50g $1337 2026-06-03 Buy
Product number Packaging Price Buy
333301 5g $99.4 Buy
283047 5g $433 Buy
283047 10g $609 Buy
283047 25g $909 Buy
283047 50g $1337 Buy

2-Methylindole-3-acetic acid Chemical Properties,Uses,Production

Uses

2-Methylindole-3-acetic Acid is a derivative of Indole-3-acetic acid which is a plant growth regulator. It induces cell division and cell elongation that promotes plant growth.

Definition

ChEBI: 2-Methylindole-3-acetic acid is a member of indole-3-acetic acids.

General Description

2-Methyl-3-indoleacetic acid is a common plant growth hormone. Relative activity of 2-methyl-3-indoleacetic acid in promoting growth (elongation) in plant cells was evaluated.

Synthesis

Levulinic acid

123-76-2

Phenylhydrazine

100-63-0

2-METHYLINDOLE-3-ACETIC ACID

1912-43-2

GENERAL METHOD: Acetylpropionic acid (10 mmol) was dissolved in acetic acid (30 mL) and phenylhydrazine (15 mmol) was added to the solution under stirring conditions. The reaction mixture was heated to reflux for 4 hours. Upon completion of the reaction, it was cooled to room temperature and the mixture was poured into water (200 mL) and the pH was adjusted to 5-6 with 30% sodium hydroxide solution.The precipitated solid was collected by filtration, recrystallized from ethanol and dried under vacuum to give 2-methylindole-3-acetic acid (2a). 2-Methylindole-3-acetic acid (2a): yellow solid, 78% yield, melting point 200-203 °C (literature value 199-200 °C); 1H NMR (500 MHz, CDCl3) δ: 2.31 (3H, s, CH3), 3.65 (2H, s, CH2), 6.97 (1H, t, J = 7.5 Hz, ArH), 7.12 ( 1H, t, J = 7.5 Hz, ArH), 7.23 (1H, d, J = 6.0 Hz, ArH), 7.33 (1H, d, J = 6.0 Hz, ArH), 10.83 (1H, s, COOH), 12.15 (1H, s, NH); IR (νmax, cm-1): 1504, 1518, 1565, 1624, 1769, 2935, 3001, 3535; HRMS m/z: 190.0824 (calculated value C11H11NO2 [M + H]+: 190.0823).

References

[1] Journal of Chemical Research, 2016, vol. 40, # 10, p. 588 - 590

123-76-2
100-63-0
1912-43-2
Synthesis of 2-Methylindole-3-acetic acid from Levulinic acid and Phenylhydrazine
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View Lastest Price from 2-Methylindole-3-acetic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
(2-Methyl-1H-indol-3-yl)acetic acid pictures 2026-08-25 (2-Methyl-1H-indol-3-yl)acetic acid
1912-43-2
$2.00-5.00 1kg 99% 100kg ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
2-METHYLINDOLE-3-ACETIC ACID pictures 2019-07-06 2-METHYLINDOLE-3-ACETIC ACID
1912-43-2
$1.00 1kg 95%-99% Career Henan Chemical Co
(2-METHYL-1H-INDOL-3-YL)-ACETIC ACID 2-METHYL-3-INDOLEACETIC ACID AKOS BC-0002 IFLAB-BB F0345-1687 2-Me-IAA 2-METHYLINDOLE-3-ACETIC ACID(2MeIAA) 2-Methyl Indole-3-acetate Acid 1H-Indole-3-acetic acid, 2-Methyl- 2-METHYLINDOLE-3-ACETIC ACID, 98+% 2-Methyl-3-indoleacetic acid 98% 2-(2-methyl-1H-indol-3-yl)ethanoic acid 2-Methylindole-3- acetic acid?New 2-(2-Methyl-3-indolyl)acetic Acid 2-Methylindole-3-acetic acid 1912-43-2 Building Blocks Indoles Heterocyclic Building Blocks Imidazol&Benzimidazole Indoles and derivatives Building Blocks Heterocyclic Building Blocks Indoles