Guanidine thiocyanate
SIAL/G6639 - ≥97% (titration)
Synonym: Guanidinium rhodanide; Guanidinium thiocyanate
CAS Number: 593-84-0
Empirical Formula (Hill Notation): CH5N3 · CHNS
Molecular Weight: 118.16
EC Number: 209-812-1
MDL Number: MFCD00013027; MFCD00013027
Linear Formula: NH2C(=NH)NH2 · HSCN
Product Type: Chemical
| anion traces | chloride (Cl-): ≤2.5% |
| assay | ≥97% (titration) |
| biological source | synthetic |
| color | white to off-white |
| form | powder or crystals |
| InChI | 1S/CH5N3.CHNS/c2-1(3)4;2- |
| InChI key | ZJYYHGLJYGJLLN-UHFFFAOYSA |
| mp | 120-122 °C (lit.) |
| Quality Level | 200 ![]() |
| SMILES string | SC#N.NC(N)=N |
| solubility | water: 4 M, clear, colorless |
| technique(s) | RNA extraction: suitable |
| Application: | Chaotropic agent and strong denaturant; solubilizes cells. |
| Application: | Guanidine thiocyanate has been used: • as a denaturing agent to study its effects on surface activity of globular protein • for the extraction of total RNA from primary hepatocytes • as a component of the incubating buffer for extraction of DNA from human bone • as a component of the guanidine thiocyanate (GITC) lysis buffer for extraction of elephant shark DNA • as a component of lysis solution for extraction of RNA from rat pancreatic tissues |
| Biochem/physiol Actions: | Guanidine thiocyanate (GTC) is a powerful protein denaturant and can denature endogenous ribonucleases. It plays a role in separation of ribosomal ribonucleic acid (rRNA) from ribosomes. GTC in combination with phenol and chloroform can be used in isolation of total RNA from cells and tissues. |
| Packaging: | 1 kg in glass bottle |
| Packaging: | 25, 100, 250 g in poly bottle |
| Packaging: | 500 g in glass bottle |
| Symbol | ![]() GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302 + H312 + H332 - H314 - H412 |
| Precautionary statements | P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | C,Xn |
| Risk Statements | 20/21/22-32-34-52/53 |
| Safety Statements | 13-26-36/37/39-45-61 |
| RIDADR | UN 1759 8 / PGIII |
| WGK Germany | WGK 2 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH032 |
| Purity | ≥97% (titration) |
| mp | 120-122 °C (lit.) |
| UNSPSC | 12352209 |



