Active ingredient
Pharmaceutical analytical standardMagnesium hydroxide
Synonyms: magnesium dihydroxide, Milk of magnesia, Magnesii hydroxidum, INS NO.528, Phillips milk of magnesia liquid, Magmex, Dulcolax Liquid, Gentle Laxative, MagLax, Antacid-Laxative, Walgreens Childrens, LAXADE, Magnalax, MiraFAST soft chews, CVS Health Childrens, Milk Of Magnesia Mint, Humco Milk Of Magnesia, Milk Of Magnesia Cherry, Milk Of Magnesia Liquid, Sunmark Milk Of Magnesia, Medibest Milk of Magnesia, Milk Of Magnesia Original, Milk of Magnesia Concentrate, Childrens Oral Saline Laxative, Dulcolax Soft Chews Watermelon, Sunmark Milk Of Magnesia Mint, Premier Value Milk of Magnesia, Equate Kids Gentle Laxative SC, CareOne Milk of Magnesia Cherry, Dulcolax Soft Chews Mixed Berry, Equate Gentle Laxative Soft chew, Careone Milk of magnesia Original, Phillips Original Milk Of Magnesia, Walgreens Childrens Saline Laxative, CVS Health Childrens Saline Laxative, Dulcolax Chewy Bites Assorted Fruits, Phillips Fresh Mint Milk Of Magnesia, Phillips Milk Of Magnesia Wild Cherry, Dulcolax Chewy Fruit Bites Cherry Berry, Sunmark milk of magnesia original, Walgreens Blueberry Raspberry Gentle Laxative, Careone Milk of magnesia Original Milk of Magnesia Original, Alcanex NHC 25, Baschem 12, Caustic magnesite, Combustrol 500, Duhor, Duhor N, Ebson RF, FloMag H, FloMag HUS, Hydrofy G 1.5, Hydrofy G 2.5, Hydrofy N, Kisuma S 4, Kyowamag F, Mag Chem MH 10, MagneClear 58, Magnesia Magma, Magnesiamaito, Magnifin H 10, Marinco H, Reachim, Versamag, Oxaine M
- Cat. No.
- P-M232-001
- CAS
- 1309-42-8
- Alternative CAS
- 1310-73-2 (sodium salt)
- 21645-51-2 (other salt)
- 7791-18-6 (dihydrochloride magnesium salt)
- 10025-84-0 (other salt)
- 1909-42-8 (alternative CAS, same compound)
- Formula
- H2MgO2
- Molecular weight
- 58.32 g/mol
- Category
- Active ingredient (API)
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
Shipped under controlled temperature when the molecule requires it.
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Sent with every order.
Follow your shipment live, from our warehouse to your lab.
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.