ChemicalBook >> CAS DataBase List >>2-Methyl-1,3-cyclohexanedione

2-Methyl-1,3-cyclohexanedione

CAS No.
1193-55-1
Chemical Name:
2-Methyl-1,3-cyclohexanedione
Synonyms
2-METHYLCYCLOHEXANE-1,3-DIONE;1,3-Cyclohexanedione, 2-methyl-;2-MECHD;NSC 54460;2-METHYL-1,3-CYCLOHEXANDIONE;Acridine Related Compound 10;1-Methyl-2,6-cyclohexanedione;2-METHYL-1,3-CYCLOHEXANEDIONE;1,3-DIMETHYLCYCLOADIPIC KETONE;2-Methyl-1,3-cyclohexanedione>
CBNumber:
CB3214752
Molecular Formula:
C7H10O2
Molecular Weight:
126.15
MDL Number:
MFCD00001587
MOL File:
1193-55-1.mol
MSDS File:
SDS
Last updated:2026-05-28 01:03:23

2-Methyl-1,3-cyclohexanedione Properties

Melting point 206-208 °C (lit.)
Boiling point 194.28°C (rough estimate)
Density 1.0579 (rough estimate)
refractive index 1.4660 (estimate)
storage temp. Inert atmosphere,Room Temperature
solubility methanol: 0.1 g/mL, clear
form Powder, Crystals or Crystalline Powder
pka 5.58±0.25(Predicted)
color Off-white to salmon to pale brown
Water Solubility INSOLUBLE
Sensitive Hygroscopic
BRN 1281598
InChI 1S/C7H10O2/c1-5-6(8)3-2-4-7(5)9/h5H,2-4H2,1H3
InChIKey VSGJHHIAMHUZKF-UHFFFAOYSA-N
SMILES CC1C(=O)CCCC1=O
LogP -0.390 (est)
CAS DataBase Reference 1193-55-1(CAS DataBase Reference)
NIST Chemistry Reference 1,3-Cyclohexanedione, 2-methyl-(1193-55-1)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P305+P351+P338
PPE Eyeshields, Gloves, type N95 (US)
Hazard Codes  Xi
Safety Statements  22-24/25
WGK Germany  3
3-10
HS Code  29142900
Storage Class 11 - Combustible Solids
NFPA 704
1
2 0

2-Methyl-1,3-cyclohexanedione price More Price(55)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich M37935 2-Methyl-1,3-cyclohexanedione 97% 1193-55-1 25g $162 2026-04-30 Buy
Sigma-Aldrich M37935 2-Methyl-1,3-cyclohexanedione 97% 1193-55-1 100g $593 2026-04-30 Buy
TCI Chemical M1133 2-Methyl-1,3-cyclohexanedione >98.0%(GC)(T) 1193-55-1 5g $78 2026-04-30 Buy
TCI Chemical M1133 2-Methyl-1,3-cyclohexanedione >98.0%(GC)(T) 1193-55-1 25g $310 2026-04-30 Buy
Cayman Chemical 10007138 2-methyl-1,3-Cyclohexanedione ≥95% 1193-55-1 1g $24 2026-04-30 Buy
Product number Packaging Price Buy
M37935 25g $162 Buy
M37935 100g $593 Buy
M1133 5g $78 Buy
M1133 25g $310 Buy
10007138 1g $24 Buy

2-Methyl-1,3-cyclohexanedione Chemical Properties,Uses,Production

Description

2-methyl-1,3-Cyclohexanedione is a synthetic intermediate useful for pharmaceutical synthesis.

Chemical Properties

White to salmon powder

Uses

An important starting material, exemplified in a formal synthesis of acorone.1

Uses

2-Methylcyclohexane-1,3-dione acts as a synthetic intermediate. It is an important starting material, exemplified in a formal synthesis of acorone. It is also used in Organic Synthesis, Pharmaceuticals, Agrochemicals.

Synthesis

1,3-Cyclohexanedione

504-02-9

2-Methyl-1,3-cyclohexanedione

1193-55-1

In a reactor equipped with a stirrer, 300 parts of methanol, 56 parts of a 50% aqueous solution of dimethylamine and 56 parts of 1,3-cyclohexanedione were added and the mixture was warmed up to 30 °C. A 37% aqueous solution of formaldehyde was added dropwise over a period of 1 hour. After addition, the reaction solution was maintained at 40°C for 3 hours. The unreacted 1,3-cyclohexanedione content was monitored by HPLC to confirm the reaction endpoint. Subsequently, 10 portions of 5% palladium-carbon catalyst were added to the reaction mixture and the reaction was carried out at 30°C and atmospheric pressure with hydrogen gas passed for 15 hours. The unreacted 2-dimethylaminomethyl-1,3-cyclohexanedione content was detected by high performance liquid chromatography to confirm the completion of the reaction. At the end of the reaction, the catalyst was removed by filtration at 30 °C, 300 parts of water were added to the filtrate, methanol was removed by distillation, and the residue was adjusted with 35% hydrochloric acid to pH 6. The precipitate was collected by filtration, washed with water and dried at 70 °C to give 54.8 parts of 2-methyl-1,3-cyclohexanedione as dry cake (yield: 87.0%). HPLC analysis showed that the purity of 2-methyl-1,3-cyclohexanedione in the dry cake was 97.2%. The melting point of the dried cake was 206°-208°C (literature value: 207°-209°C). FD-MS analysis showed that the dried cake had a peak at m/z 126, which was consistent with the theoretical molecular weight.

References

[1] Patent: US5276198, 1994, A

504-02-9
1193-55-1
Synthesis of 2-Methyl-1,3-cyclohexanedione from 1,3-Cyclohexanedione
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View Lastest Price from 2-Methyl-1,3-cyclohexanedione manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Methyl-1,3-cyclohexanedione pictures 2025-04-04 2-Methyl-1,3-cyclohexanedione
1193-55-1
1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
2-Methyl-1,3-cyclohexanedione   in stock  Factory  pictures 2020-06-02 2-Methyl-1,3-cyclohexanedione in stock Factory
1193-55-1
$1.00 1KG TOP 3 Factory in China Chemwill Asia Co.,Ltd.
2-Methyl-1,3-cyclohexanedione pictures 2019-11-08 2-Methyl-1,3-cyclohexanedione
1193-55-1
1g 98%min 20kg/month Nanjing jinheyou Trading Co., Ltd.
NSC 54460 1-Methyl-2,6-cyclohexanedione 2-MECHD 2-METHYL-1,3-CYCLOHEXANDIONE 2-METHYL-1,3-CYCLOHEXANEDIONE 1,3-DIMETHYLCYCLOADIPIC KETONE 2-Methyl-1,3-cyclohexanedione, 98+% 2-Methyl-1,3-cyclohexanedione in stock Factory 2-Methyl-1,3-cyclohexanedione 97% 2-METHYL-1,3-CYCLOHEXANEDIONE (SEE 2625) 2-METHYLCYCLOHEXANE-1,3-DIONE, 98+% 2-Methyl-1,3-cyclohexanedione> Acridine Related Compound 10 2-METHYLCYCLOHEXANE-1,3-DIONE 1,3-Cyclohexanedione, 2-methyl- 1193-55-1 Organic Building Blocks Ketones Building Blocks C7 to C8 Carbonyl Compounds Miscellaneous C7 to C8 Carbonyl Compounds Ketones Bioactive Small Molecules Building Blocks C7 to C8 Carbonyl Compounds Cell Biology Chemical Synthesis M Organic Building Blocks