Disodium Edetate Dihydrate

Synonyms: Edta disodium, EDTA disodium salt, Disodium edetate (edta), Disodium dihydrogen ethylenediaminetetraacetate dihydrate, Ethylenediaminetetraacetic acid disodium dihydrate, Ceftriaxone Impurity 39, EDTA disodium salt, dihydrate, Ethylenediaminetetraacetic acid disodium salt, dihydrate, Aceticacid,(ethylenedinitrilo)tetra-,disodiumsalt,dihydrate

Cat. No.: P-E009-002
CAS: 6381-92-6
Alternative CAS: 60-00-4 (free acid)
470462-56-7 (free acid)
53632-26-1 (free acid)
688-55-1 (free acid)
124949-23-1 (free acid)
39208-14-5 (calcium salt sodium salt)
61864-74-2 (calcium salt sodium salt)
13235-36-4 (sodium salt hydrate)
39377-66-7 (magnesium salt)
23411-34-9 (calcium salt sodium salt hydrate)
12312-36-6 (magnesium salt)
15708-48-2 (potassium salt magnesium salt)
304695-29-2 (magnesium salt sodium salt hydrate)
194491-32-2 (magnesium salt sodium salt hydrate)
304675-80-7 (ammonium salt hydrate)
73513-47-0 (sodium salt zinc salt hydrate)
194491-30-0 (ammonium salt hydrate)
62-33-9 (calcium salt sodium salt)
64-02-8 (sodium salt)
139-33-3 (alternative CAS, same compound)
Formula: C₁₀H₁₄N₂Na₂O₈·2H₂O
Molecular weight: 372.24 g/mol
Category: Impurity or related compound

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Characterisation level Level 1 Mass balanceFor small molecules, identity is confirmed by IR, MS, 1H-NMR and 13C-NMR, purity by HPLC (min. 95%) and assay by mass balance (min. 90%); for peptides and similar molecules, identity is confirmed by mass spectrometry (ESI-MS and MALDI-TOF) and IR, purity by HPLC (min. 95%) and assay by mass balance, reported for information only.* Level 2 Mass balance + qNMRFor small molecules, in addition to the Level 1 analyses, the assay is verified by qNMR, an orthogonal method independent of chromatography; for peptides and similar molecules, Level 2 is not available. Analytical documentation supporting qualification as an in-house primary standard under ICH Q7 (§11.17-11.18).

* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.

Quantity

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We reply within 24 hours with a quote and availability. CoA and SDS with every lot.

Family: Edetic Acid

Known as EDTA, it is a chelating agent synthesised in 1935 by Ferdinand Münz in Germany: it binds metal ions tightly and, with its salts, is used against lead poisoning, as an anticoagulant in blood test tubes and as a preservative.

Did you know?Münz was looking for a substitute for citric acid to reduce Germany's dependence on imports; today about 80,000 tonnes of EDTA are produced every year.

The two levels compared

	Level 1 Mass balance	Level 2 Mass balance + qNMR
Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR)	✓	✓
HPLC purity (min. 95%)	✓	✓
Content by mass balance (min. 90%; peptides: for information only)*	✓	✓
Content verified by qNMR (small molecules only)	·	✓
Suitable to qualify it as an in-house primary standard (ICH Q7)	·	✓

What you receive

The analytical standard

Shipped under controlled temperature when the molecule requires it.

Certificate of analysis (CoA)

For every lot: identity, purity and assay, with the supporting spectra and chromatograms.

Safety data sheet (SDS)

Sent with every order.

Tracked shipment

Follow your shipment live, from our warehouse to your lab.

Pharmacopoeial standards available

The official European Pharmacopoeia standards for this molecule, supplied with EDQM documentation.

Disodium EdetateBP 1224
Disodium edetate CRSEP D2900000

More products in the Edetic Acid family

ImpurityEthylenediaminetetraacetic Acid tetra-Sodium SaltCat. No. P-E009-003CAS 64-02-8

ImpurityNitrilotriacetic AcidCat. No. P-E009-005CAS 139-13-9

ImpuritySodium Calcium EdetateCat. No. P-E009-006CAS 62-33-9

See all 4 products in the family

Frequently asked questions

Is mass balance always performed?

Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.

Can I ask for a different quantity?

Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.

Which level should I choose?

Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.

When will I get the quote?

Within 24 working hours, with price, availability and delivery time.

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