Methylhexahydrophthalic Anhydride CAS 25550-51-0 MHHPA

Methylhexahydrophthalic Anhydride is a colourless to light yellow transparent liquid with low volatility.Mainly used as weathering curing agent for epoxy resin (e.g. electronic packaging, coating), its hydrogenated structure gives the product excellent yellowing resistance and mechanical strength.It needs to be sealed and stored away from light. It is irritating to skin/eyes and requires protection when handling.

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Model:
25550-51-0
Brand:
Futurechemical
Code:
25550-51-0

Product Description

Methylhexahydrophthalic anhydride Basic information
Product Name:	Methylhexahydrophthalic anhydride
CAS:	25550-51-0
MF:	C9H12O3
MW:	168.19
EINECS:	247-094-1
Mol File:	25550-51-0.mol
Methylhexahydrophthalic anhydride Chemical Properties
Boiling point	299℃[at 101 325 Pa]
density	1.162
vapor pressure	0.274Pa at 25℃
refractive index	1.479Nd(25°C)
storage temp.	Inert atmosphere,Room Temperature
solubility	Chloroform (Slightly), Methanol (Slightly)
pka	4.12[at 20 ℃]
form	Oil
color	Colourless
Stability:	Moisture Sensitive
InChI	InChI=1S/C9H12O3/c1-9-5-3-2-4-6(9)7(10)12-8(9)11/h6H,2-5H2,1H3
InChIKey	VYKXQOYUCMREIS-UHFFFAOYSA-N
SMILES	C1(OC(=O)C2CCCCC12C)=O
LogP	2.59 at 25℃
CAS DataBase Reference	25550-51-0(CAS DataBase Reference)
EPA Substance Registry System	Methylhexahydrophthalic anhydride (25550-51-0)

Methylhexahydrophthalic Anhydride MHHPA CAS 25550-51-0 Epoxy resin curing agent Weather-resistant coating Rubber processing aid Environmentally friendly plasticizer

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.