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1-Naphthoic acid

CAS No.86-55-5
Chemical Name:1-Naphthoic acid
CBNumber:CB6475509
Molecular Formula:C11H8O2
Formula Weight:172.18
MOL File:86-55-5.mol

1-Naphthoic acid Property

Melting point 157-160 °C (lit.)
Boiling point 300 °C (lit.)
Density 1.398
refractive index 1.4600 (estimate)
Flash point 195°C
storage temp. Sealed in dry,Room Temperature
solubility Slightly soluble in hot water; freely soluble in hot ethanol, ether
pka 3.7(at 25℃)
form Powder
color Slightly yellow to brown
Specific Gravity 1.398
PH Range Non& uorescence (2.5) to blue & uorescence (3.5)
Water Solubility Freely soluble in hot alcohol and ether. Slightly soluble in hot water.
λmax 293nm
Merck 14,6381
BRN 1908896
Stability Stable. Incompatible with strong bases, strong oxidizing agents.
Major Application Photoresists, recording materials, waveguides, battery, ink, rubber, plastic films, agriculture, cosmetics, Sunscreen, method for preserving food, drugs, biosensors
InChIKey LNETULKMXZVUST-UHFFFAOYSA-N
CAS DataBase Reference 86-55-5(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 2NIV4O66BH
NIST Chemistry Reference 1-Naphthalenecarboxylic acid(86-55-5)
EPA Substance Registry System 1-Naphthalenecarboxylic acid (86-55-5)
UNSPSC Code 12352100
NACRES NA.22

Safety

Hazard Codes :Xi
Risk Statements :36/37/38
Safety Statements :26-36-24/25-37
WGK Germany :2
RTECS :QL0960000
TSCA :Yes
HS Code :29163900

NFPA 704:

	1
2		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H303-H335
Precautionary statements P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a

1-Naphthoic acid Price More Price(4)

Brand: Sigma-Aldrich(India)
Product number: N1909
Product name : 1-Naphthoic acid
Purity: 96%
Packaging: 25G
Price: ₹1948.5
Updated: 2022/06/14
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Brand: ALFA India
Product number: ALF-A10273-22
Product name : 1-Naphthoic acid, 98%
Purity:
Packaging: 100g
Price: ₹7770
Updated: 2022/05/26
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Brand: ALFA India
Product number: ALF-A10273-14
Product name : 1-Naphthoic acid, 98%
Purity:
Packaging: 25g
Price: ₹2269
Updated: 2022/05/26
Buy: Buy

Brand: TCI Chemicals (India)
Product number: N0024
Product name : 1-Naphthoic Acid
Purity:
Packaging: 25G
Price: ₹2800
Updated: 2022/05/26
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1-Naphthoic acid Chemical Properties,Usage,Production

Chemical Properties Off-white to beige powder
Uses 1-Naphthoic acid is used as an intermediate for the synthesis of pharmaceuticals, photochemicals, plant growth hormones, dyes and other organic compounds.
Definition ChEBI: 1-naphthoic acid is a naphthoic acid carrying a carboxy group at position 1. It has a role as a fungal xenobiotic metabolite and a bacterial xenobiotic metabolite. It is a conjugate acid of a 1-naphthoate.
Application 1-Naphthoic acid has been used as a novel asymmetric chromophore for exciton-coupled circular dichroism (ECCD), which can be used to induce chirality^[1]. 1-Naphthoic acid has also been used as an organic synthesis reactant for the preparation of naphthanones, isocoumarin derivatives, and naphthalene carboxylic acid cellulose. Microcrystalline cellulose (MCC) and cellulose nanofibres (CNFs) were modified by esterification using 1-Naphthoic acid in a toluenesulfonyl chloride/pyridine solvent system to produce fluorophore labelled cellulose. Cellulose modification decreases the degradation temperature and hence the thermal stability of cellulose. After induction of naphthoate side chains, a glass transition temperature (Tg) of about 160 °C was observed. Cellulose naphthalenecarboxylate shows a strong ultraviolet (UV) absorption peak at 282 nm and has good fluorescent properties. Therefore, it can be used for fluorescent coatings, sensors and packaging^[2].
Synthesis Reference(s) Organic Syntheses, Coll. Vol. 2, p. 425, 1943
Tetrahedron Letters, 22, p. 1013, 1981 DOI: 10.1016/S0040-4039(01)82853-7
Purification Methods Crystallise the acid from toluene (3mL/g) (charcoal), pet ether (b 80-100o), or aqueous 50% EtOH. The amide has m 202o (from EtOH). [Beilstein 9 IV 2402.]
References [1] BIANCA SCHREDER. 1-Naphthoic acid: A new type of asymmetric chromophore for exciton-coupled circular dichroism (ECCD)[J]. Tetrahedron, asymmetry, 1996, 7 6: Pages 1543-1546. DOI:10.1016/0957-4166(96)00176-0.
[2] LEASE J, SAHIN Z M, FARID M A A, et al. Synthesis of Nanocellulose Derivatives through Esterification with Naphthoic Acid as a Fluorescent Additive[J]. ACS Sustainable Chemistry & Engineering, 2024, 343 1. DOI:10.1021/acssuschemeng.4c04206.