Antioxidant 1076
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Boron Trifluoride Diethyl Etherate


o-Phthalaldehyde paramete

CAS No.: 643-79-8
MF: C8H6O2, C8H6O2
Place of Origin: Shandong, China
Purity: 99%min
Model Number: C-CAS 643-79-8
Appearance: White crystal, Yellow powder
CAS: 643-79-8
Storage: Normal termperature
Sample: Available
Assay: 99%min
Other Names: OPA
EINECS No.: 211-402-2
Type: Pharmaceutical Intermediates
Brand Name: Look chemical
Application: Intermediate
NAME: o-Phthalaldehyde
MW: 134.13
Stock: Enough
Packing: 1kg/bag,25kg/drum or as your requirements






Yellow crystalline

Yellow or light yellow crystalline

Melting point










The results conforms with enterprise standards


1.This product is a pharmaceutical intermediate. It is the latest effective and safe antibacterial disinfectant for external use. It can be used for disinfection and sterilization of endoscopic surgical instruments in hospitals. It can be used to synthesize a new antiplatelet aggregation drug indopofen and it is also an analytical reagent in the chemical field.

2.Yellow needle crystal, mainly used in medicine, dyes, etc. Amino acid derivatization reagent, fluorescence detection, the reaction can be completed in one minute, but the product is unstable and needs to be detected immediately.

3.o-Phthalaldehyde solution is a high level disinfectant for repeated treatment of thermosensitive medical devices.

4.It is a reagent for amine alkaloids and is used for the fluorometric determination of primary amines and peptide bond decomposers; for pre-column derivatization of amino acids in high performance liquid chromatography separations; and for the measurement of protein sulfhydryl groups by flow cytometry.

o-Phthalaldehyde vs. Glutaraldehyde

o-Phthalaldehyde has many advantages over glutaraldehyde. Click here to learn more.

Product service

1. Certificate Of Analysis (COA)

2. Material Safety Data Sheet (MSDS)

3. Route of synthesis (ROS)

4. Method of Aanlysis (MOA)

5. Nuclear Magnetic Resonance (NMR)

6. Packing pictures and loading video before loading

7. Free Sample

8. Factory audit


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.

After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.

As an experienced o-phthalaldehyde manufacturer and supplier, Look Chemical is committed to producing and selling high quality products.

We cooperate and trade with 6000+ factories around the world, and our high-quality products and excellent services make us enjoy a high reputation internationally.

If you have a demand for this product, please contact our company's sales staff, we will provide you with a solution in the shortest time.


• Q1: Can I get some samples?
A:   Yes, we can supply the free sample, but the shipping cost be paid by customers.

• Q2:  How to start orders or make payments?
A :  PI will be sent first after confirmation of order,enclosed our bank information.Payment  by  T/T, Western Union LC,Alibaba trade assurance ,Moneygram or Paypal.

• Q3: What’s your MOQ?
A :  Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

• Q4: How about delivery leadtime?
A :  Delivery lead time: About 3-5 days after payment confirmed.(Chinese holiday not included)

• Q5: Is there a discount?
A :  Different quantity has different discount.

• Q6: How to contact us ?
A :  You can chat with us by Trademanager,MSN&Skype Online. You can choose your interested products and send inquiry to us. You can dial our telephone directly, you will get our reply. Send Email to us.

• Q7: How to confirm the Product Quality before placing orders?
A :  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.




H301: Toxic if swallowed [Danger Acute toxicity, oral]

H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H317 : May cause an allergic skin reaction [Warning Sensitization, Skin]

H318 : Causes serious eye damage [Danger Serious eye damage/eye irritation]

H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]

H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]


o-Phthalaldehyde should be stored in a sealed container and placed in a cool dry ventilated warehouse away from direct sunlight, water, acids, oxidants and food materials.


o-Phthalaldehyde CAS 643-79-8 powder could be delivered by courier, air or by sea.

For 1~100kg, we recommend to ship it by courier,which is much faster and more convenient. What's more, it may avoid some customs.

taxes for our customers. And the goods could be delived door by door.

For more than 100kg, the goods could be shipped by air or by sea, and it is up to you. But we will provide perfect solutions for your reference.


Professional chemical package


25kg/bag,25kg/drum, 25kg/carton, 25kg/vase

Or we can provide any special package which you want according to different specs

Delivery detail

Quantity(Kilograms) 1 - 1 2 - 1000 >1000
Est. Time(days) 3 5 To be negotiated

o-Phthalaldehyde picture

Packaging and shipping

Honor Certificate

Professional team