L-Aspartic-1,4-13C2 Acid — Highly Characterized Analytical Standard

Stable isotope labelled · Aspartic Acid family

Pharmaceutical analytical standard

L-Aspartic-1,4-13C2 Acid

Synonyms: L-Aspartic acid-1,4-13C2, L-(1,4-(13)C2)aspartic acid, L-Aspartic acid-1,4-(1)(3)C

Cat. No.: P-A201-005
CAS: 101247-29-4
Alternative CAS: 56-84-8 (unlabelled form)
18962-61-3 (unlabelled form, magnesium salt)
67528-13-6 (unlabelled form, potassium salt magnesium salt)
40149-75-5 (unlabelled form, hydrochloride)
91198-22-0 (unlabelled form, hydrochloride magnesium salt hydrate)
28184-71-6 (unlabelled form, hydrochloride magnesium salt hydrate)
769877-81-8 (unlabelled form, hydrochloride magnesium salt hydrate)
3792-50-5 (unlabelled form, sodium salt)
17090-93-6 (unlabelled form, sodium salt)
1115-63-5 (unlabelled form, potassium salt)
14007-45-5 (unlabelled form, potassium salt)
323194-76-9 (unlabelled form, sodium salt hydrate)
130296-88-7 (unlabelled form, ammonium salt)
32093-25-7 (unlabelled form, lithium salt)
159659-81-1 (unlabelled form, ammonium salt)
5598-53-8 (unlabelled form, sodium salt)
10389-09-0 (unlabelled form, calcium salt)
21059-46-1 (unlabelled form, calcium salt)
2001-89-0 (unlabelled form, potassium salt)
19045-00-2 (unlabelled form, zinc salt)
Formula: C₂¹³C₂H₇NO₄
Molecular weight: 135.09 g/mol
Category: Stable isotope labelled

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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: Aspartic Acid

A non-essential amino acid that builds proteins and takes part in the urea cycle and in glucose production; in the brain it stimulates NMDA receptors, being the "A" in their name (N-methyl-D-aspartate).

Did you know?It was obtained in 1827 by Plisson and Henry from asparagine, which had been isolated in 1806 from asparagus juice: hence the name. Today it is also one of the two building blocks of the sweetener aspartame.

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.

More products in the Aspartic Acid family

Active ingredientAspartic AcidCat. No. P-A201-001CAS 56-84-8

Isotopically labelledAspartic-2-13C-15N AcidCat. No. P-A201-002CAS 98532-13-9

Isotopically labelledIndole 3-Aspartate-d7Cat. No. P-A201-003

Isotopically labelledL-Aspartic-2,3,3-d3 AcidCat. No. P-A201-006CAS 3842-25-9

Impurity3-Fluoroaspartic AcidCat. No. P-A201-007CAS 67866-76-6

Impuritybeta-Aspartyl-Aspartic AcidCat. No. P-A201-008CAS 60079-22-3

ImpurityD-a-Aspartyl-D-Aspartic AcidCat. No. P-A201-009CAS 1242013-52-0

ImpurityD-Aspartic AcidCat. No. P-A201-010CAS 1783-96-6

See all 19 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.

Need a molecule you cannot find?

Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.

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