"Nα-(α-L-asparagyl)-Nε-tosyl-L-lysin-methylester" is a complex peptide derivative that combines elements of organic chemistry and biochemistry. N^α-(α-L-asparagyl)-N^ε-tosyl-L-lysin-methylester features an L-lysine residue, which is an essential amino acid, with a methyl ester group attached to its carboxylic acid group. The L-lysine is further modified by the attachment of an asparagine (Asn) residue at the α-amino group (Nα) and a tosyl group (a toluene sulfonyl group) at the ε-amino group (Nε). The tosyl group is a protecting group often used in peptide synthesis to prevent unwanted side reactions. This specific chemical structure is of interest in the field of peptide chemistry, where it may be used as an intermediate in the synthesis of more complex peptides or as a tool to study peptide interactions and folding. The compound's name reflects its structural components, indicating the presence of an asparagine-linked L-lysine with a tosyl protecting group and a methyl ester modification.

5891-55-4

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Basic information
1. Product Name: N^α-(α-L-asparagyl)-N^ε-tosyl-L-lysin-methylester
2. Synonyms:
3. CAS NO:5891-55-4
4. Molecular Formula:
5. Molecular Weight: 429.494
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: N^α-(α-L-asparagyl)-N^ε-tosyl-L-lysin-methylester(CAS DataBase Reference)
10. NIST Chemistry Reference: N^α-(α-L-asparagyl)-N^ε-tosyl-L-lysin-methylester(5891-55-4)
11. EPA Substance Registry System: N^α-(α-L-asparagyl)-N^ε-tosyl-L-lysin-methylester(5891-55-4)
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: 5891-55-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 5891-55-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,8,9 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5891-55:
(6*5)+(5*8)+(4*9)+(3*1)+(2*5)+(1*5)=124
124 % 10 = 4
So 5891-55-4 is a valid CAS Registry Number.

5891-55-4Upstream product

6010-08-8 N^α-(β-Benzyl-N-benzyloxycarbonyl-L-asparagyl)-N^ε-tosyl-L-lysin-methylester

5891-55-4Downstream Products

5891-54-3 N^α-(α-L-asparagyl)-N^ε-tosyl-L-lysin

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