Terephthalaldehyde CAS 623-27-8

Terephthalaldehyde is a white to light yellow crystalline powder with characteristic aroma.Mainly used as organic synthesis intermediates (such as fluorescent whitening agent, polyester resin), pharmaceutical raw materials and monomers of functional materials, its high reactivity and symmetrical structure are conducive to polymerisation.It needs to be sealed and stored away from light, and is irritating to eyes and respiratory tract.

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Model:
623-27-8
Brand:
Futurechemical
Code:
623-27-8

Product Description

Terephthalaldehyde Basic information
Product Name:	Terephthalaldehyde
CAS:	623-27-8
MF:	C8H6O2
MW:	134.13
EINECS:	210-784-8
Mol File:	623-27-8.mol
Terephthalaldehyde Chemical Properties
Melting point	114-116 °C (lit.)
Boiling point	245-248 °C (lit.)
density	1,06 g/cm3
vapor pressure	0.25-0.46Pa at 20-25℃
refractive index	1.4800 (estimate)
Fp	76 °C
storage temp.	Store below +30°C.
solubility	3g/l
form	Crystalline Powder
color	White to light yellow
Water Solubility	3 g/L (50 ºC)
Sensitive	Air Sensitive
BRN	385863
InChIKey	KUCOHFSKRZZVRO-UHFFFAOYSA-N
LogP	1 at 20.1℃ and pH6.6-6.8
CAS DataBase Reference	623-27-8(CAS DataBase Reference)
NIST Chemistry Reference	1,4-Benzenedicarboxaldehyde(623-27-8)
EPA Substance Registry System	1,4-Benzenedicarboxaldehyde (623-27-8)

检测项目Test items

标准值

Standard value

实测数据

Test date

性状

Appearance

类白色结晶粉末Off-white powder

含量

Content

≧99%

99.21%

熔点

Melting point

112-116℃

112.5-115℃

检验结果Conclusion

合格

Qualified

合格

Qualified

Terephthalaldehyde CAS 623-27-8 C8H6O2 Fluorescent whitening agent manufacturing Dye synthesis Plastic synthesis Flavor synthesis Fluorescent material preparation Photosensitive material manufacturing

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.