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α,α'-Paraxylyl Bismethanethiosulfonate, also known as PXBMS, is a chemical compound with the molecular formula C10H20O4S4. It is a colorless to pale yellow liquid that is soluble in water and organic solvents. PXBMS is primarily used as a protecting group in organic synthesis, particularly in the preparation of various pharmaceuticals and agrochemicals. It is known for its stability and selectivity, making it a valuable tool in the synthesis of complex molecules. The compound is also recognized for its ability to protect alcohols and other functional groups during chemical reactions, ensuring that the desired product is obtained without unwanted side reactions.

3948-46-7

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Basic information
1. Product Name: α,α’-Paraxylyl Bismethanethiosulfonate
2. Synonyms: α,α’-Paraxylyl Bismethanethiosulfonate;p-Xylene-α,α'-dithiol DiMethanesulfonate;Thio-Methanesulfonic Acid S,S'-p-PhenylenediMethylene Ester
3. CAS NO:3948-46-7
4. Molecular Formula: C₁₀H₁₄O₄S₄
5. Molecular Weight: 326.47576
6. EINECS: N/A
7. Product Categories: Cross Linking Reagents;MTS & Sulfhydryl Active Reagents
8. Mol File: 3948-46-7.mol
Chemical Properties
1. Melting Point: 180-182°C
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: -20°C Freezer
8. Solubility: Chloroform (Slightly, Heated), Ethyl Acetate (Slightly, Heated)
9. CAS DataBase Reference: α,α’-Paraxylyl Bismethanethiosulfonate(CAS DataBase Reference)
10. NIST Chemistry Reference: α,α’-Paraxylyl Bismethanethiosulfonate(3948-46-7)
11. EPA Substance Registry System: α,α’-Paraxylyl Bismethanethiosulfonate(3948-46-7)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 3948-46-7(Hazardous Substances Data)

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3948-46-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3948-46-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,4 and 8 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 3948-46:
(6*3)+(5*9)+(4*4)+(3*8)+(2*4)+(1*6)=117
117 % 10 = 7
So 3948-46-7 is a valid CAS Registry Number.

3948-46-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name	1,4-bis(methylsulfonylsulfanylmethyl)benzene

1.2 Other means of identification

Product number	-
Other names	Alpha,Alpha`-Paraxylyl Bismethanethiosulfonate

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only.
Uses advised against	no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number	-
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:3948-46-7 SDS

3948-46-7Upstream product

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3948-46-7Relevant academic research and scientific papers

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