Formaldehyde solution
| Empirical Formula (Hill Notation): | CH2O |
| Linear Formula: | HCHO |
| CAS Number: | 50-00-0 |
| Molecular Weight: | 30.03 |
| Beilstein/REAXYS Number: | 1209228 |
| MDL number: | MFCD00003274 |
| PubChem Substance ID: | 24855218 |
| NACRES: | NA.21 |
| Кат. номер |
| 252549-4X2.5L |
| 252549-6X500ML |
| 252549-138RN-150ML |
| 252549-6X1L |
| 252549-500ML |
| 252549-4X100ML |
| 252549-EW |
| 252549-VAR |
| 252549-100ML |
| 252549-1L |
| 252549-2.5L |
| 252549-25ML |
| 252549-4L |
| 252549-60KG |
| 252549-12X500ML |
| 252549-3L |
Formaldehyde (formalin) is produced by oxidation of methanol. It is made of 37% formaldehyde and impurities such as methanol, small amounts of formic acid, aldehydes and ketones. It is used as a denaturant in formaldehyde-agarose gel electrophoresis of RNA.
Formaldehyde solution has been used for cross-linking/fixing of cells in ChIP (chromatin immunoprecipitation) assay. It has been used for fixing of cells for imaging.
Formaldehyde solution has been used as a fixing agent to fix cells during immunofluorescence imaging and for cross-linking cells during chromatin immunoprecipitation (ChIP) assay.
25, 100, 4×100, 500, 6×500 mL in glass bottle
1, 4 L in glass bottle
This product is a solution of approximately 37% by weight of formaldehyde gas in water.
The article number 252549-4X2.5L will be discontinued. Please order the single bottle 252549-2.5L which is physically identical with the same exact specifications.
The article number 252549-6X1L will be discontinued. Please order the single bottle 252549-1L which is physically identical with the same exact specifications.
| Quality Level | 200 |
| grade | ACS reagent |
| vapor density | 1.03 (vs air) |
| vapor pressure | 52 mmHg ( 37 °C), 52 mmHg ( 37 °C) |
| assay | 36.5-38.0% |
| autoignition temp. | 572 °F |
| contains | 10-15% Methanol as stabilizer (to prevent polymerization) |
| concentration | 37 wt. % in H2O |
| impurities | 0.006 meq/g Titr. acid |
| ign. residue | 0.005% |
| color | APHA: 10 |
| refractive index | n20/D 1.3765 |
| density | 1.09 g/mL at 25 °C (lit.) |
| anion traces | chloride (Cl-): 5 ppm, sulfate (SO42-): 0.002% |
| cation traces | Fe: 5 ppm, heavy metals: 5 ppm (by ICP-OES) |
| suitability | suitable for manufacturing use (Laboratory chemicals) |
| SMILES string | [H]C([H])=O |
| InChI | 1S/CH2O/c1-2/h1H2 |
| InChI key | WSFSSNUMVMOOMR-UHFFFAOYSA-N |
| Pictograms | GHS02,GHS05,GHS06,GHS08 |
| Signal Word | Danger |
| Hazard Statements | H226 - H301 + H311 - H314 - H317 - H330 - H335 - H341 - H350 - H370 |
| Precautionary Statements | P201 - P210 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Target Organs | Respiratory system |
| RIDADR | UN 2209 8 / PGIII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 132.8 °F - closed cup |
| Flash Point(C) | 56 °C - closed cup |