PTSA (CAS 70-55-3) — formula C7H9NO2S, molecular weight 171.22; category organic chemicals.
PTSA (CAS 70-55-3) is a chemical raw material in the organic chemicals category. Its molecular formula C7H9NO2S comprises 7 C, 9 H, 1 N, 2 O, 1 S atoms. Its molecular weight is about 171.22. Reported physicochemical data: melting point around 138 °C, boiling point around BP: 214 °C at 10 mm Hg, LogP about log Kow = 0.82. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 70-55-3 |
|---|---|
| Molecular Formula | C7H9NO2S |
| Molecular Weight | 171.22 |
| Melting Point | 138 °C |
| Boiling Point | BP: 214 °C at 10 mm Hg |
| LogP | log Kow = 0.82 |
| Applications | Used to retard growth of fungi and mildew in paints, plasticizers, and resins, Also used as a plasticizer for hot-melt adhesives (commonly found in commercial mixtures with o-isomer), Used as intermediate for pesticides, Painting (Pigments |
| Category | Organic Chemicals |
Documented applications: Used to retard growth of fungi and mildew in paints, plasticizers, and resins, Also used as a plasticizer for hot-melt adhesives (commonly found in commercial mixtures with o-isomer), Used as intermediate for pesticides, Painting (Pigments.
PTSA is a carbon-based organic compound with CAS registry number 70-55-3 and molecular formula C7H9NO2S (molecular weight 171.22), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 70-55-3
Its molecular formula C7H9NO2S comprises 7 C, 9 H, 1 N, 2 O, 1 S atoms.
Also known as: PTSA
Category: organic chemicals
The CAS registry number of PTSA is 70-55-3.
Molecular formula C7H9NO2S, molecular weight 171.22.
It is also registered under: PTSA.
Recorded applications: Used to retard growth of fungi and mildew in paints, plasticizers, and resins, Also used as a plasticizer for hot-melt adhesives (commonly found in commercial mixtures with o-isomer), Used as intermediate for pesticides, Painting (Pigments.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for PTSA (CAS 70-55-3), compiled from public chemistry databases.
| CAS Number | 70-55-3 |
|---|---|
| PubChem CID | 6269 |
| Molecular Formula | C7H9NO2S |
| IUPAC Name | 4-methylbenzenesulfonamide |
| UNII (FDA) | I8266RI90M |
| Molecular Weight | 171.22 |
|---|---|
| XLogP3 | 0.8 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 1 |
| Exact Mass | 171.03539970 |
| Monoisotopic Mass | 171.03539970 |
| Topological Polar Surface Area | 68.5 |
| Heavy Atom Count | 11 |
| Boiling Point | BP: 214 °C at 10 mm Hg |
|---|---|
| Melting Point | 138 °C |
| Melting Point | MP: 105 °C (Hydrated) |
| Flash Point | 202 °C (396 °F) Closed cup |
| Flash Point | 202 °C c.c. |
| Solubility | In water, 3.16X10+3 mg/L at 25 °C |
| Vapor Pressure | 0.000096 [mmHg] |
| Vapor Pressure | 0.000096 [mm Hg] @25 °C |
| LogP | log Kow = 0.82 |
| LogP | 0.82 |
P-TOLUENESULFONAMIDE; 4-Methylbenzenesulfonamide; 70-55-3; 4-Toluenesulfonamide; Tosylamide; p-Tosylamide; Toluene-4-sulfonamide; Benzenesulfonamide, 4-methyl-; para-Toluenesulfonamide; p-Toluenesulfonylamide; p-Tolylsulfonamide; p-Methylbenzenesulfonamide; Tolylsulfonamide; Toluene-4-sulphonamide; Toluene-p-sulphonamide; 4-Toluenesulfanamide
| GHS notifications | 57% (146 / 256) |
|---|
| GHS notifications | 57% (146 / 256) |
|---|---|
| Notified hazard statements | H319 (36.3%) |
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: PTSA