4-O-Methylsulfonyl-2,3,5-tri-O-benzyl-D-arabinose-dibenzylacetal is a complex organic compound with the molecular formula C37H40O7S. It is a derivative of D-arabinose, a monosaccharide sugar, where the hydroxyl groups at positions 2, 3, and 5 are protected with benzyl groups, and the hydroxyl group at position 4 is protected with a methylsulfonyl group. 4-O-Methylsulfonyl-2,3,5-tri-O-benzyl-D-arabinose-dibenzylacetal is commonly used in organic synthesis, particularly in the preparation of complex carbohydrates and glycoconjugates, due to its stability and the ease with which the protecting groups can be removed under specific conditions. The benzyl groups can be cleaved using catalytic hydrogenation or other reagents, while the methylsulfonyl group can be removed under basic conditions, allowing for the selective deprotection of the sugar moiety.

4202-54-4

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Basic information
1. Product Name: 4-O-Methylsulfonyl-2,3,5-tri-O-benzyl-D-arabinose-dibenzylacetal
2. Synonyms:
3. CAS NO:4202-54-4
4. Molecular Formula:
5. Molecular Weight: 696.862
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: 4-O-Methylsulfonyl-2,3,5-tri-O-benzyl-D-arabinose-dibenzylacetal(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-O-Methylsulfonyl-2,3,5-tri-O-benzyl-D-arabinose-dibenzylacetal(4202-54-4)
11. EPA Substance Registry System: 4-O-Methylsulfonyl-2,3,5-tri-O-benzyl-D-arabinose-dibenzylacetal(4202-54-4)
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: 4202-54-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4202-54-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,0 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4202-54:
(6*4)+(5*2)+(4*0)+(3*2)+(2*5)+(1*4)=54
54 % 10 = 4
So 4202-54-4 is a valid CAS Registry Number.

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