Tris-O-(toluene-4-sulfonyl)-2,5-anhydro-D-arabitol is a complex organic compound with the molecular formula C36H39O15S3. It is a derivative of D-arabitol, a sugar alcohol, where three hydroxyl groups are replaced by tosyl (toluene-4-sulfonyl) groups. This modification enhances the compound's reactivity and stability, making it useful in various chemical and biological applications. The compound is often employed as a protecting group in organic synthesis, particularly in the preparation of complex carbohydrates and other biomolecules. Its unique structure allows for selective reactions and controlled deprotection, which is crucial in the synthesis of pharmaceuticals and other bioactive compounds.

20764-57-2

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Basic information
1. Product Name: tris-O-(toluene-4-sulfonyl)-2,5-anhydro-D-arabitol
2. Synonyms:
3. CAS NO:20764-57-2
4. Molecular Formula:
5. Molecular Weight: 596.7
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: tris-O-(toluene-4-sulfonyl)-2,5-anhydro-D-arabitol(CAS DataBase Reference)
10. NIST Chemistry Reference: tris-O-(toluene-4-sulfonyl)-2,5-anhydro-D-arabitol(20764-57-2)
11. EPA Substance Registry System: tris-O-(toluene-4-sulfonyl)-2,5-anhydro-D-arabitol(20764-57-2)
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: 20764-57-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 20764-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,6 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20764-57:
(7*2)+(6*0)+(5*7)+(4*6)+(3*4)+(2*5)+(1*7)=102
102 % 10 = 2
So 20764-57-2 is a valid CAS Registry Number.

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