Impurity2-(Hydroxymethyl)oxolane-2,4-diolCat. No. P-L006-003CAS 136272-61-2
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Active ingredient · Lactulose family
Pharmaceutical analytical standardLactulose
Synonyms: Bifiteral, Cephulac, Chronulac, Constilac, Acilac, Cholac, Constulose, Enulose, Generlac, Heptalac, Laxilose, Portalac, Kristalose, Lattulosio, NSC 757082, D-Fructose, 4-O-beta-D-galactopyranosyl-, Osmolax, Regulose, Lemlax, Laxose orange, Duphalac Dry, Evalose, Isolactose, Laevolac, Actilax, beta-D-Fructofuranose, 4-O-beta-D-galactopyranosyl-, Fructofuranose, 4-O-beta-D-galactopyranosyl-, D-, alpha-D-Fructofuranose, 4-o-beta-D-galactopyranosyl-, Pharmakon1600-01500363
- Cat. No.
- P-L006-001
- CAS
- 4618-18-2
- Alternative CAS
- 58166-24-8 (alternative CAS, same compound)
- 58166-25-9 (alternative CAS, same compound)
- Formula
- C12H22O11
- Molecular weight
- 342.30 g/mol
- Category
- Active ingredient (API)
A synthetic sugar made from lactose, first prepared in 1929 and used in medicine since the 1950s as an osmotic laxative and for hepatic encephalopathy. It is on the WHO List of Essential Medicines.
Did you know?Raw milk contains none: it forms when milk is heated, and the stronger the heat treatment, the more lactulose there is.
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) | · | ✓ |
* 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.
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.
- LactuloseBP 210
- Lactulose CRSEP L0130000
- Lactulose for peak identification CRSEP Y0001510
More products in the Lactulose family
Impurity2-(Hydroxymethyl)oxolane-2,4-diolCat. No. P-L006-003CAS 136272-61-2
ImpurityD-TagatoseCat. No. P-L006-004CAS 41847-61-4Frequently 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.