1,4-Naphthalenedicarboxylic acid, monomethyl ester, also known as monomethyl 1,4-naphthalenedicarboxylate or methyl phthalate, is an organic compound with the chemical formula C10H8O4. It is a colorless to pale yellow crystalline solid that is soluble in most organic solvents and slightly soluble in water. 1,4-Naphthalenedicarboxylic acid, monomethyl ester is derived from 1,4-naphthalenedicarboxylic acid, where one of the carboxylic acid groups is esterified with a methyl group. It is primarily used as an intermediate in the production of various phthalate esters, which are widely used as plasticizers in the manufacturing of flexible polyvinyl chloride (PVC) products. Additionally, it has applications in the synthesis of dyes, pharmaceuticals, and other specialty chemicals. Due to its potential health and environmental concerns, it is essential to handle and dispose of this chemical according to proper safety guidelines.
21426-90-4
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Basic information
- Product Name: 1,4-Naphthalenedicarboxylic acid, monomethyl ester
- Synonyms: naphthalene-1,4-dicarboxylic acid monomethyl ester;Naphthalin-dicarbonsaeure-(1,4)-monomethylester;1-Carboxymethyl-4-naphthalincarbonsaeure;4-(methoxycarbonyl)-1-naphthoic acid;methyl 1,4-napthalene monocarboxylate;4-Carbomethoxynaphthalin-1-carbonsaeure;
- CAS NO:21426-90-4
- Molecular Formula: C13H10O4
- Molecular Weight: 230.22
- EINECS: N/A
- Product Categories: N/A
- Mol File: 21426-90-4.mol
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Chemical Properties
- Melting Point: 148 - 150 °C (hexane)
- Boiling Point: 434.4±28.0 °C(Predicted)
- Flash Point: N/A
- Appearance: N/A
- Density: 1.323±0.06 g/cm3(Predicted)
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 1,4-Naphthalenedicarboxylic acid, monomethyl ester(CAS DataBase Reference)
- NIST Chemistry Reference: 1,4-Naphthalenedicarboxylic acid, monomethyl ester(21426-90-4)
- EPA Substance Registry System: 1,4-Naphthalenedicarboxylic acid, monomethyl ester(21426-90-4)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 21426-90-4(Hazardous Substances Data)
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21426-90-4 Usage
Primary Use
Building block for the synthesis of various polymers and resinsApplications
a. Plasticizerb. Component in the production of polyesters
c. Manufacture of bottles, films, and fibers
d. Pharmaceutical industry for creating active pharmaceutical ingredients
e. Intermediate in the synthesis of agrochemicals
Physical Properties
a. White solidb. High melting point
c. Low solubility in water
Industrial Suitability
Due to its physical properties, it is suitable for various industrial applicationsSafety Precautions
Proper handling and safety measures should be taken to avoid potential health and environmental hazards.Check Digit Verification of cas no
The CAS Registry Mumber 21426-90-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,2 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.Calculate Digit Verification of CAS Registry Number 21426-90:
(7*2)+(6*1)+(5*4)+(4*2)+(3*6)+(2*9)+(1*0)=84
84 % 10 = 4
So 21426-90-4 is a valid CAS Registry Number.
21426-90-4Upstream product
21426-90-4Downstream Products
- 131986-05-5 4-acetylnaphthalene-1-carboxylic acid
- 1401000-55-2 4-[2,6-dichloro-4-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-phenylcarbamoyl]-naphthalene-1-carboxylic acid methyl ester
- 1401000-44-9 C24H15Cl2F7N2O4S
- 1401000-56-3 4-[2,6-dichloro-4-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-phenylcarbamoyl]-naphthalene-1-carboxylic acid
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1,4-Naphthalenedicarboxylic acid, monomethyl ester
