1,8-Naphthalic anhydride 81-84-5

It forms needle-like crystals in ethanol and rhombohedral crystals in acetic acid. It is insoluble in water, ether, and benzene; slightly soluble in hot ethanol; and soluble in hot acetic acid.

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Model:
81-84-5
Brand:
futurechemical
Code:
81-84-5

Product Description

1,8-Naphthalic anhydride Basic information
Product Name:	1,8-Naphthalic anhydride
CAS:	81-84-5
MF:	C12H6O3
MW:	198.17
EINECS:	201-380-2
Mol File:	81-84-5.mol
1,8-Naphthalic anhydride Chemical Properties
Melting point	269 °C
Boiling point	295.48°C (rough estimate)
density	1.2571 (rough estimate)
vapor pressure	0Pa at 25℃
refractive index	1.5550 (estimate)
Fp	272 °C
storage temp.	Store below +30°C.
solubility	Chloroform (Slightly, Heated), DMSO
form	Powder
color	Beige to light brown
Water Solubility	decomposes
Sensitive	Moisture Sensitive
BRN	153190
Henry's Law Constant	1.6×101 mol/(m3Pa) at 25℃, HSDB (2015)
InChI	1S/C12H6O3/c13-11-8-5-1-3-7-4-2-6-9(10(7)8)12(14)15-11/h1-6H
InChIKey	GRSMWKLPSNHDHA-UHFFFAOYSA-N
SMILES	O=C1OC(=O)c2cccc3cccc1c23
LogP	3.24
Surface tension	72.5mN/m at 1.3mg/L and 20℃
CAS DataBase Reference	81-84-5(CAS DataBase Reference)
NIST Chemistry Reference	1,8-Naphthalic anhydride(81-84-5)
EPA Substance Registry System	1,8-Naphthalic anhydride (81-84-5)

1 8-Naphthalic anhydride 81-84-5 C12H6O3 Fluorescent whitening agent High-performance polyester resin raw material Herbicide safener

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.