If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
402885
p-Toluenesulfonic acid monohydrate
ACS reagent grade, ≥98.5%, solid
Synonym(s):
4-Methylbenzenesulfonic acid monohydrate, 4-Toluenesulfonic acid monohydrate, PTSA monohydrate, TsOH monohydrate
Select a Size
| Pack Size | SKU | Availability | Price |
|---|
About This Item
Product Name
p-Toluenesulfonic acid monohydrate, ACS reagent, ≥98.5%
grade
ACS reagent
Quality Segment
vapor density
5.9 (vs air)
assay
≥98.5%
form
solid
concentration
≥98.5%
clarity of soln
passes test
impurities
9.5-11.5% water
ign. residue
≤0.1%
mp
103-106 °C (lit.)
solubility
H2O: 10g + 50 mL, clear, colorless
anion traces
sulfate (SO42-): ≤0.3%
cation traces
Fe: ≤0.01%, Na: ≤0.002%, heavy metals (as Pb): ≤0.001%
functional group
tosylate
SMILES string
[H]O[H].Cc1ccc(cc1)S(O)(=O)=O
InChI
1S/C7H8O3S.H2O/c1-6-2-4-7(5-3-6)11(8,9)10;/h2-5H,1H3,(H,8,9,10);1H2
InChI key
KJIFKLIQANRMOU-UHFFFAOYSA-N
General description
Application
- Unsymmetrical benzils.
- Highly substituted piperidines.
- 1,3,5-Trisubstituted benzenes by trimerization of alkynes.
- Triazoloquinazolinone and benzimidazoquinazolinone derivatives.
- 1,3,5-Trisubstituted pyrazoles derivatives.[1]
- Selenated ketene dithioacetals.
1 of 1
This Item | |||
|---|---|---|---|
| grade ACS reagent | grade - | grade - | grade ACS reagent |
| concentration ≥98.5% | concentration - | concentration - | concentration - |
| assay ≥98.5% | assay ≥99% (calc. to H2O free subst.) | assay ≥98% | assay ≥99.0% anhydrous basis (acidimetric) |
| Quality Level 300 | Quality Level 200 | Quality Level 200 | Quality Level 300 |
| form solid | form solid | form solid | form crystals |
| solubility H2O: 10g + 50 mL, clear, colorless | solubility - | solubility - | solubility 750 g/L |
Still not finding the right product?
Explore all of our products under p-Toluenesulfonic acid monohydrate
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Related Content
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 402885-5G | 04061831986129 |
| 402885-2.5KG | 04065273544107 |
| 402885-100G | 04061835555093 |
| 402885-500G | 04061835562954 |
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
Helpful?
-