Cas no 840-65-3 (Dimethyl naphthalene-2,6-dicarboxylate)

Dimethyl naphthalene-2,6-dicarboxylate is a high-purity organic compound primarily used as an intermediate in the synthesis of advanced polymers and specialty chemicals. Its rigid naphthalene backbone and ester functional groups make it a valuable precursor for producing high-performance polyesters and liquid crystal polymers (LCPs), which exhibit exceptional thermal stability, mechanical strength, and chemical resistance. The compound’s well-defined molecular structure ensures consistent reactivity, facilitating precise polymerization processes. It is particularly favored in applications requiring materials with high heat resistance and dimensional stability, such as electronics, automotive components, and industrial coatings. Its compatibility with various catalysts and solvents further enhances its utility in tailored chemical synthesis.
Dimethyl naphthalene-2,6-dicarboxylate structure
840-65-3 structure
Product Name:Dimethyl naphthalene-2,6-dicarboxylate
CAS No:840-65-3
MF:C14H12O4
MW:244.242684364319
MDL:MFCD00004100
CID:83130
PubChem ID:87573715
Update Time:2025-10-19

Dimethyl naphthalene-2,6-dicarboxylate Chemical and Physical Properties

Names and Identifiers

    • dimethyl naphthalene-2,6-dicarboxylate
    • Naphthalene-2,6-dicarboxylic acid dimethyl ester
    • Dimethyl 2,6-Naphthalenedicarboxylate
    • 2,6-Naphthalenedicarboxylic Acid Dimethyl Ester
    • Dimethyl 2,6-naphthalate
    • NSC 59387
    • 2,6-NAPHTHALENEDICARBOXYLIC ACID, DIMETHYL ESTER
    • 2,6-Dicarbomethoxynaphthalene
    • Dimethyl-2,6-naphthalenedicarboxylate
    • X4Q5T8RS0G
    • GYUVMLBYMPKZAZ-UHFFFAOYSA-N
    • 2,6-Naphthalene dicarboxylic acid, dimethyl ester
    • 2,6-Naphthalenedicarboxylic acid, 2,6-dimethyl ester
    • AK307688
    • 2,6-dimethyl naphthalene-2,6-dicarboxylate
    • naphthalene-
    • 2,6-Dimethyl 2,6-naphthalenedicarboxylate (ACI)
    • 2,6-Naphthalenedicarboxylic acid, dimethyl ester (6CI, 7CI, 8CI, 9CI)
    • 2,6-Bis(methoxycarbonyl)naphthalene
    • 2,6-Naphthalic acid dimethyl ester
    • Dimethyl naphthalene-2,6-dicarboxylate
    • MDL： MFCD00004100
    • Inchi： 1S/C14H12O4/c1-17-13(15)11-5-3-10-8-12(14(16)18-2)6-4-9(10)7-11/h3-8H,1-2H3
    • InChI Key： GYUVMLBYMPKZAZ-UHFFFAOYSA-N
    • SMILES： O=C(C1C=C2C(C=C(C(OC)=O)C=C2)=CC=1)OC
    • BRN： 987259

Computed Properties

  • Exact Mass: 244.07400
  • Monoisotopic Mass: 244.073559
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 4
  • Heavy Atom Count: 18
  • Rotatable Bond Count: 4
  • Complexity: 294
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Surface Charge: 0
  • XLogP3: 2.9
  • Topological Polar Surface Area: 52.6

Experimental Properties

  • Color/Form: Not determined
  • Density: 1.225±0.06 g/cm3 (20 oC 760 Torr),
  • Melting Point: 190.0 to 193.0 deg-C
  • Boiling Point: 347.16°C (rough estimate)
  • Flash Point: 232°C
  • Refractive Index: 1.5389 (estimate)
  • Solubility: Almost insoluble (0.071 g/l) (25 o C),
  • Water Partition Coefficient: Soluble in hot toluene (very faint turbidity). Insoluble in water.
  • PSA: 52.60000
  • LogP: 2.41300
  • Solubility: Not determined

Dimethyl naphthalene-2,6-dicarboxylate Security Information

  • Hazardous Material transportation number：NONH for all modes of transport
  • WGK Germany：3
  • Safety Instruction： S22-S24/25
  • TSCA：Yes

Dimethyl naphthalene-2,6-dicarboxylate Customs Data

  • HS CODE：2917399090
  • Customs Data：

    China Customs Code:

    2917399090

    Overview:

    2917399090 Other aromatic polycarboxylic acids. VAT:17.0% Tax refund rate:9.0% Regulatory conditions:nothing MFN tariff:6.5% general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to, Terephthalic acid please specify4-CBAvalue, Terephthalic acid please specifyP-TLacid value, Terephthalic acid please indicate color, Terephthalic acid please indicate moisture

    Summary:

    2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives.Supervision conditions:None.VAT:17.0%.Tax rebate rate:9.0%.MFN tariff:6.5%.General tariff:30.0%

Dimethyl naphthalene-2,6-dicarboxylate Pricemore >>

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Dimethyl naphthalene-2,6-dicarboxylate Production Method

Production Method 1

Reaction Conditions
1.1 Reagents: Tripotassium phosphate Catalysts: Dichloro[1,1′-(1,3-propanediyl)bis[1,1-diphenylphosphine-κP]]nickel Solvents: 1,4-Dioxane ;  12 - 24 h, 100 - 110 °C
Reference
An Efficient Suzuki-Miyaura Coupling of Aryl Sulfamates and Boronic Acids Catalyzed by NiCl2(dppp)
Chen, Guo-Jun; et al, European Journal of Organic Chemistry, 2012, 2012(19), 3575-3579

Production Method 2

Reaction Conditions
1.1 Catalysts: Palladium Solvents: 1-Methylnaphthalene
Reference
Thermal ring annulation of α-vinylcinnamate methyl esters. A method for the generation of 3,4-dihydro-2-naphthoate and 2-naphthoate methyl esters
Zoeller, Joseph R., Journal of Organic Chemistry, 1988, 53(20), 4716-19

Production Method 3

Reaction Conditions
Reference
Condensation of 2-methylnaphthalene with cyclohexane- and cyclopentane-1,1-diacetic acid anhydrides in presence of anhydrous aluminum chloride and the synthesis of 6,7-(7'-methyl-3',4'-naphthalene)cycloheptane-3-spirocycloalkanes
Mathur, K. C.; et al, Proceedings of the National Academy of Sciences, 1987, 57(2), 93-100

Production Method 4

Reaction Conditions
1.1 Reagents: Lithium carbonate (Li2CO3) Solvents: Dimethylformamide ;  overnight, rt
1.2 Reagents: Hydrochloric acid Solvents: Water
Reference
Bicyclic organo-peptides as selective carbohydrate receptors: design, solid-phase synthesis, and on-bead binding capability
Benito, Juan M.; et al, QSAR & Combinatorial Science, 2004, 23(2-3), 117-129

Production Method 5

Reaction Conditions
1.1 Reagents: Triethylamine Catalysts: Palladium diacetate ,  1,3-Bis(diphenylphosphino)propane Solvents: Methanol ,  Dimethyl sulfoxide
Reference
Convenient preparation of axially chiral 1,1'-binaphthyl-2-carboxylates via the palladium-catalyzed carbonylation of 1,1'-binaphthyl-2-yl triflates
Hotta, H.; et al, Journal of Molecular Catalysis, 1989, 54(2),

Production Method 6

Reaction Conditions
1.1 Reagents: Ethyl bromoacetate ,  Potassium carbonate Catalysts: Cobaltate(1-), tetracarbonyl-, sodium (1:1), (T-4)- Solvents: Methanol
Reference
Cobalt-catalyzed methoxycarbonylation of naphthalene mono- and di-sulfonates to naphthalene mono- and di-esters
Cometti, Giuseppe; et al, Journal of Organometallic Chemistry, 1993, 451(1-2),

Production Method 7

Reaction Conditions
Reference
Sequential acetalization-pyrolysis of α-acetylcinnamates and α-acetylbenzalacetones. A method for the generation of 2-carbonyl-substituted naphthalenes
Zoeller, Joseph R.; et al, Journal of Organic Chemistry, 1990, 55(1), 319-24

Production Method 8

Reaction Conditions
Reference
Gas-chromatographic determination of products of oxidation of 2,6-dimethylnaphthalene
Shcheglova, V. A.; et al, Anal. Kontrol v Pr-ve Monomerov, 1989, 132, 132-5

Production Method 9

Reaction Conditions
Reference
Process for 2,6-naphthalenedicarboxylic acid manufacture
, United Kingdom, , ,

Production Method 10

Reaction Conditions
1.1 Catalysts: Benzyl chloride ,  Dicobalt octacarbonyl Solvents: Methanol ;  1 - 3 atm, 60 - 65 °C
Reference
Manufacture of aromatic acids and recycling of polychlorobiphenyl dioxin-like dielectrics by carbonylation of aryl halides
Zhesko, T. E.; et al, Neftekhimiya, 2007, 47(4), 296-300

Dimethyl naphthalene-2,6-dicarboxylate Raw materials

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Amadis Chemical Company Limited
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(CAS:840-65-3)Dimethyl naphthalene-2,6-dicarboxylate
Order Number:A840711
Stock Status:in Stock
Quantity:500g
Purity:99%
Pricing Information Last Updated:Friday, 30 August 2024 06:50
Price ($):607.0
Suzhou Senfeida Chemical Co., Ltd
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(CAS:840-65-3)DIMETHYL 2,6-NAPHTHALENEDICARBOXYLATE
Order Number:sfd12434
Stock Status:in Stock
Quantity:200KG
Purity:99%
Pricing Information Last Updated:Friday, 19 July 2024 14:36
Price ($):discuss personally
Tiancheng Chemical (Jiangsu) Co., Ltd
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(CAS:840-65-3)Dimethyl 2,6-Naphthalenedicarboxylate, ≥ 99.0%
Order Number:LE14530
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 12:10
Price ($):discuss personally

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Amadis Chemical Company Limited
(CAS:840-65-3)Dimethyl naphthalene-2,6-dicarboxylate
A840711
Purity:99%
Quantity:500g
Price ($):607.0
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Suzhou Senfeida Chemical Co., Ltd
(CAS:840-65-3)DIMETHYL 2,6-NAPHTHALENEDICARBOXYLATE
sfd12434
Purity:99%
Quantity:200KG
Price ($):Inquiry
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