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Phthalaldehyd ≥98%, gelbe Kristalle

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0210264880 0210264825 0210264801 0210264805
ICNA0210264880EA 668 EUR InStock
ICNA0210264880 ICNA0210264825 ICNA0210264801 ICNA0210264805
Phthalaldehyd ≥98%, gelbe Kristalle
Phthalaldehyd
The molecule is a dialdehyde, consisting of two formyl (CHO) groups attached to adjacent carbon centres on a benzene ring.

o-Phthalaldehyde is used for precolumn derivatization of amino acids for HPLC separation and for flow cytometric measurements of protein thiol groups. Used for fluorometric determination of histamine, histidine and other amino acids. Also used for cholesterol assay in the picomole range.

o-Phthalaldehyde is used for precolumn derivatisation of amino acids for HPLC separation and for flow cytometric measurements of protein thiol groups. Used for fluorometric determination of histamine, histidine and other amino acids. Also used for cholesterol assay in the picomole range.

Soluble in acetic acid (40 mg/ml) or methanol (21 mg/ml - clear solution); slightly soluble in water (5 mg/ml).

Syn: 2-Carboxybenzaldehyde; Phthaldialdehyde; o-Phthalic dicarboxaldehyde; Benzene-1,2-dicarboxaldehyde; OPA

Achtung! Bitte beachten: Protect from light. Store under nitrogen.


Formel: C₈H₆O₂
MW: 134.13 g/mol
Siedepunkt: 266
Melting Pt: 53.5…56.3 °C
Dichte: 1.13 g/cm³ (20 °C)
Flash-Pt: 132
Storage Temperature: Kühlschrank
 MDL Number: MFCD00003335
CAS-Nummer: 643-79-8
EINECS: 211-402-2
UN: 2923
ADR: 6.1 II
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Spezifikation Testergebnisse
Identity Test Passes
Purity ≥98%
FTIR Conforms to Standard
Melting point 53 - 58 °C

 

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These terms and conditions cover all sales of products and services by VWR International Ltd (VWR) in the United Kingdom and any information and advice given whether charged for or not, unless otherwise agreed by VWR in writing. These terms and conditions apply to the exclusion of any other terms submitted by the customer or which are implied by any trade, custom, practice or course of dealing.

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VWR’s products can be hazardous and all customers are required to comply with the VWR account application procedures which are available on request. VWR reserves the right immediately to cancel any orders from customers who have not complied in full with these procedures.

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The customer’s order for the products and/or services is an offer by the customer to purchase those products and/or services in accordance with these terms and conditions and shall only be deemed accepted when VWR issues written acceptance of the order, at which point the contract between the customer and VWR for the supply of those products and/or services, comes into existence (contract).

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Should VWR need to supply products and/or services of different specifications, sources, and pack size to that published or ordered by the customer, VWR shall do so only after consultation with and agreement by the customer.

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Customers who exceed their credit limits will be asked to pay in advance for additional products and/or services until the account is settled.

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Delivered products will remain the property of   VWR until the customer has paid for them.

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Authorisation to return products damaged during delivery must be requested within 3 days of delivery. VWR has the right to repair and return damaged products.

Authorisation for the return of products which fail to meet current published manufacturer’s specifications must be requested in writing within 28 days of delivery. VWR will assist customers, at customers’ expense, to obtain any manufacturer’s warranty consistent with that granted to VWR.

Authorisation for the return of products, other than those damaged during delivery, delivered in error or those that do not meet specification, must be requested within 10 days of delivery. Credit (less a handling charge of 15% of the invoice value of all products returned subject to a minimum charge of £30) will be given for those products authorised for return which are unused and in re-saleable condition other than those in the categories shown:-

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Authorisation will be subject to the condition that the products are returned to VWR Customer Service Centre or to the manufacturer or other source and by the method advised by VWR.

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Risk in products will pass at the time of delivery to the customer.
The customer is responsible for unloading and transporting large and/or heavy items from delivery vans and for supervising the unloading of all other products delivered.

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On termination of the contract for any reason the customer shall immediately pay to VWR all of its outstanding unpaid invoices and interest.

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Governing law

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