四羟甲基硫酸磷 (CAS registry number 55566-30-8) is supplied as a chemical raw material for formulation and synthesis work. The molecular formula is C8H24O12P2S, giving a molecular weight of 406.28 g/mol. This is a polyfunctional organic compound of 8 carbon with 15 heteroatoms, present in ionic form; of medium-to-high molecular weight. Documents are issued per shipment rather than per catalogue entry: each batch is accompanied by a Certificate of Analysis, and safety data sheets, technical datasheets and third-party test reports are supplied on request for export documentation.
| CAS Number | 55566-30-8 |
|---|---|
| Molecular Formula | C8H24O12P2S |
| Molecular Weight | 406.28 |
| Melting Point | -31 °F (NTP, 1992) |
| Boiling Point | 232 °F at 760 mmHg (NTP, 1992) |
| Purity | per batch COA (not published) |
| Packaging | per order / batch confirmation (not published) |
Applications are confirmed against the end use rather than listed generically. Tell us the formulation and we will map it to a specification.
For export enquiries, include the destination country and the intended application in your message. This lets us confirm whether the grade needs any additional documentation beyond the standard per-batch COA, and whether the packing suits the planned transport mode.
Packing is per order / batch confirmation (not published) and purity is per batch COA (not published). Both are agreed at order stage; for export movements the packing is chosen with the transport mode and destination in mind, and drum, bag or repacked formats are all available. Storage: sealed, in a cool and dry place, away from direct sunlight.
Each shipment is accompanied by a batch Certificate of Analysis. For cross-border orders, MSDS, technical datasheets and third-party test reports can be issued to match your documentation set; declare the destination country when you enquire so the paperwork matches on arrival. Contact: info@591daili.com · +86-18553102138.
COA (Certificate of Analysis) is provided with every batch. MSDS/technical data sheets and third-party test reports are available on request. Purity and packaging are subject to batch COA and order confirmation.
From a process-selection standpoint, This product is an aliphatic organic carrying 12 oxygen, with mid-range polarity. defines where this material fits and where it does not. Three points deserve checking before purchase: structural type, which sets the reactive sites and compatibility; polarity class, which dictates the solvent system; and molecular-weight range, which governs dosage and dispersion feasibility.
Ionic form also carries a hidden cost in selection: hygroscopicity. When sealing is inadequate, ionic inorganic or carboxylate products cake, which affects dosing as well as weighing accuracy. Where the usage rate is low, smaller packs replenished frequently are often cheaper than one large pack held in storage.
For this product specifically: the saturated aliphatic backbone is stable at ambient conditions, so oxidation risk comes mainly from oxygen, peroxides or trace transition metals introduced in processing rather than from the skeleton itself. If oxidisable components are also present, evaluate the order of addition during storage.
Polarity sits in the conventional range, so behaviour in a given formulation depends on the solvent system and additive interactions around it. A small-scale trial under real formulation conditions is the sensible confirmation.
At 320~500 g/mol the species exists in water as a colloid or polymer segments and measurably changes rheology once dispersed, making it useful as a thickener, dispersant, film former or release matrix. Check shear stability separately — a wide molecular-weight distribution can lose viscosity faster than expected under strong shear.
A few points on receipt and storage. keep the container tightly sealed — ionic products readily absorb moisture and cake; pre-disperse high-molecular-weight material, as adding it dry into a viscous medium clumps; specific handling and PPE follow the MSDS issued with the batch.. For inbound or outbound shipments, confirm packing group and transport classification in advance to avoid demurrage caused by documentation mismatch.
On documentation: the batch COA travels with every shipment; MSDS, technical datasheets and third-party test reports can be issued on request. If your quality system requires supplier qualification documents — business licence, production permit, management-system certificates — state the destination country and the document list when you enquire, and we will assemble the set at once.
四羟甲基硫酸磷 is a chemical compound with CAS registry number 55566-30-8 and molecular formula C8H24O12P2S (molecular weight 406.28).
This entry belongs to the chemical range, where the material is normally supplied against a stated grade rather than blended to a formula. Where a buyer works to a published standard, the useful conversation is about which data the grade is qualified against and how deviations are handled, rather than about the use category itself.
Jinan Shenghe Chemical Co., Ltd. supplies 四羟甲基硫酸磷 with stable inventory and provides a Certificate of Analysis (COA) with each batch; custom repacking is available per process requirement.
CAS number: 55566-30-8 — searchable in PubChem for physicochemical, safety and regulatory data.
Its molecular formula C8H24O12P2S comprises 8 C, 24 H, 12 O, 2 P, 1 S atoms.
Also known as: 四羟甲基硫酸磷
Within the chemical segment, the technical questions differ from other categories. Buyers here are usually working to a specification or a standard rather than to a general description, so the useful conversation covers impurity profile, particle size or assay method, and which data the grade is qualified against.
For qualification work, we can supply a sample batch with full documentation so that incoming QC has something concrete to compare against. Mentioning the destination country at enquiry stage also lets us match the paperwork set to your import requirements.
Purity available is per batch COA (not published), with packing per order / batch confirmation (not published). Neither value is asserted in advance: every batch ships with a Certificate of Analysis carrying the measured results, so incoming QC compares against real data rather than a catalogue claim. MSDS, technical datasheets and third-party test reports can be issued for qualification purposes — state the standard you qualify against when you enquire.
Supplier: Jinan Shenghe Chemical Co., Ltd.. For export orders, state the destination country, the transport mode and the document set you need when you enquire — packing, paperwork and quotation terms all follow from those three. Samples can be arranged for qualification, and lead time depends on stock and order size rather than on a fixed promise.
Email: info@591daili.com · Tel/WhatsApp: +86-18553102138
The CAS number of 四羟甲基硫酸磷 is 55566-30-8.
Typical purity is per batch COA (not published), supplied in per order / batch confirmation (not published), with COA provided.
Please refer to the product COA or contact us for application details.
Each batch ships with a Certificate of Analysis (COA). MSDS and other technical documents are available on request.
Store sealed in a cool, dry place. Handling and PPE follow the MSDS supplied with the batch; general chemical-handling precautions are recommended.
Samples are available on request. Please contact us at info@591daili.com or via WhatsApp for details.
Email info@591daili.com or reach us on WhatsApp with the product name, CAS number and required quantity; quotes within one business day. Supplier: Jinan Shenghe Chemical Co., Ltd..
Independent reference data for 四羟甲基硫酸磷 (CAS 55566-30-8), compiled from public chemistry databases. It is reproduced here so that a qualification decision does not depend on a single source: if your incoming specification and these values disagree, the difference is usually a measurement basis rather than an error. We would rather you saw the same reference figures we do. Values that vary by batch — assay, moisture, particle size, packaging, shelf life — are deliberately excluded and issued on the batch COA instead.
| CAS Registry Number | 55566-30-8 |
|---|---|
| PubChem CID | 41478 |
| Molecular formula | C8H24O12P2S |
| IUPAC name | bis(tetrakis(hydroxymethyl)phosphanium);sulfate |
| UNII (FDA) | 5I8RSL9E6S |
| Molecular Weight | 406.28 |
|---|---|
| Hydrogen Bond Donor Count | 8 |
| Hydrogen Bond Acceptor Count | 12 |
| Rotatable Bond Count | 8 |
| Exact Mass | 406.04637137 |
| Monoisotopic Mass | 406.04637137 |
| Topological Polar Surface Area | 250 |
| Heavy Atom Count | 23 |
| Boiling Point | 232 °F at 760 mmHg (NTP, 1992) |
|---|---|
| Melting Point | -31 °F (NTP, 1992) |
TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE; 55566-30-8; Retardol S; Pyroset TKO; CCRIS 316; DTXSID0021331; HSDB 4215; Octakis(hydroxymethyl)phosphonium sulfate; NCI-C55050; UNII-5I8RSL9E6S; EINECS 259-709-0; 5I8RSL9E6S; Bis(tetrakis(hydroxymethyl)phosphonium)sulfate (salt); bis[tetrakis(hydroxymethyl)phosphonium] sulfate; Phosphonium, tetrakis(hydroxymethyl)-, sulfate (2:1) (salt); Phosphonium, tetrakis(hydroxymethyl)-, sulfate (2:1)
| Regulatory & Food Contact | FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS FDA Inventory of Effective Food Contact Substance (FCS) Noti: FCS Tetrakis (hydroxymethyl) phosphonium sulfate (THPS) (CAS Reg. No. 55566-30-8) As a preservative in coatings intended for use on paper and paperboard that may contact food. The FCS may be used at levels not to exceed 400 ppm in water-based coatings, starches, pigments, and filler sl |
|---|---|
| GHS notification summary | 0.4% (2 / 472) |
| GHS notification summary | 0.4% (2 / 472) |
|---|---|
| Reported hazard statements | H301 (30.1%), H302 (66.1%), H317 (99.6%), H318 (99.6%), H330 (30.1%), H331 (46.8%), H360 (16.7%), H361 (35.8%) |
This chemical does not meet GHS hazard criteria for 0.4% (2 of 472) of reports.
H301 (30.1%): Toxic if swallowed [Danger Acute toxicity, oral]
Tetrakis Hydroxymethyl Phosphonium Sulfate · CAS 55566-30-8 · C8H24O12P2S. UNII 5I8RSL9E6S. Boiling Point: 232 °F at 760 mmHg (NTP, 1992); Melting Point: -31 °F (NTP, 1992).
CAS 55566-30-8; molecular formula C8H24O12P2S; molecular weight — g/mol.
Source: public chemistry databases (PubChem / Wikidata) and the cited literature. Batch-dependent values are issued on the accompanying COA.
Supplier: Jinan Shenghe Chemical Co., Ltd.