Molekula
Guanidine hydrochloride
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Guanidine hydrochloride is a white crystalline solid derived from guanidine, widely used as a reagent in organic synthesis, protein denaturation studies, and as a precursor in pharmaceutical manufacturing. It is the hydrochloride salt of guanidine, a powerful chaotropic agent whose aqueous solutions are roughly neutral to slightly acidic, and is also employed in the production of agrochemicals and as a stabilizer in various chemical formulations. This chemical has a CAS number of 50-01-1, with the molecular formula CH5N3·HCl and a molecular weight of 95.53. It is stored at ambient conditions and carries a signal word of "Warning" for safety classification. Molekula supplies Guanidine hydrochloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — $58.70 per pack
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1 kg — $109.10 per pack
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5 kg — $420.90 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder, mostly free-flowing. May contain solid clumps (clumps will break into fine powder). |
| Melting Point | 180 - 188°C |
| Water | ≤ 0.3% |
| Solubility | Clear colourless solution at 6M in Water |
| Assay | ≥ 99.0% |
| UV Absorbance | a) A(260nm) = ≤ 0.04 , b) A(280nm) = ≤ 0.02 |
| Identification (RAMAN) | Conforms to Reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 178-185 °C |
Source: PubChem CID 5742 (ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 21369121 |
| CAS Number | 50-01-1 |
| IUPAC Name | guanidine;hydrochloride |
| EC Number | 200-002-3 |
| Molecular Formula | CH5N3 · HCl |
| Molecular Weight | 95.53 |
| Exact Mass | 95.025 |
| SMILES | C(=N)(N)N.Cl |
| InChIKey | PJJJBBJSCAKJQF-UHFFFAOYSA-N |
| InChI | InChI=1S/CH5N3.ClH/c2-1(3)4;/h(H5,2,3,4);1H |
| PubChem CID | 5742 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2925.29.6000 |
| Tariff Code | 2925290090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Norwegian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Aminoformamidine hydrochloride
- Aminomethanamidine hydrochloride
- Carbamidine hydrochloride
- Chloride, Guanidinium
- Chloride, Guanidium
- guanidine HCl
- GUANIDINE MONOHYDROCHLORIDE
- Guanidinium chloride
- Guanidium chloride
- Iminourea hydrochloride
Frequently asked questions
What is guanidine hydrochloride commonly used for?
Guanidine hydrochloride is primarily used as a chaotropic agent in protein denaturation studies, as a reagent in organic synthesis, and in biochemical research for stabilizing proteins and nucleic acids.
What is the chemical formula and molecular weight of guanidine hydrochloride?
The chemical formula is CH₅N₃·HCl, and the molecular weight is 95.53 g/mol.
What is the recommended storage condition for guanidine hydrochloride?
Store at ambient temperature in a cool, dry place, away from incompatible substances.
What grades of guanidine hydrochloride does Molekula supply?
Molekula supplies analytical and laboratory-grade guanidine hydrochloride, meeting high-purity standards for research applications.
Can Molekula supply guanidine hydrochloride in bulk quantities?
Yes, Molekula can provide guanidine hydrochloride in bulk quantities upon request, subject to availability and order specifications.
What documentation comes with an order of guanidine hydrochloride?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.