"Trp-Asp(OBu^t)-Asn-Gln-OBu^t" is a peptide sequence consisting of five amino acids: tryptophan (Trp), aspartic acid with a tert-butyl ester group (Asp(OBu^t)), asparagine (Asn), glutamine (Gln), and another tert-butyl ester group (OBu^t). This specific arrangement of amino acids forms a peptide bond, which is a covalent bond between the carboxyl group of one amino acid and the amino group of another. The presence of the tert-butyl ester groups on the aspartic acid and at the C-terminus of the peptide sequence suggests that Trp-Asp(OBu^t)-Asn-Gln-OBu^t is a protected peptide, which is often used in peptide synthesis to prevent unwanted side reactions during the assembly process. The tert-butyl groups can be removed later, under acidic conditions, to yield the desired peptide with free carboxyl and amino groups. This peptide sequence may have specific biological activity or be used as a building block in the synthesis of larger peptides or proteins.

83428-85-7

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Basic information
1. Product Name: Trp-Asp(OBu^t)-Asn-Gln-OBu^t
2. Synonyms:
3. CAS NO:83428-85-7
4. Molecular Formula:
5. Molecular Weight: 673.767
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: Trp-Asp(OBu^t)-Asn-Gln-OBu^t(CAS DataBase Reference)
10. NIST Chemistry Reference: Trp-Asp(OBu^t)-Asn-Gln-OBu^t(83428-85-7)
11. EPA Substance Registry System: Trp-Asp(OBu^t)-Asn-Gln-OBu^t(83428-85-7)
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: 83428-85-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 83428-85-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,4,2 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 83428-85:
(7*8)+(6*3)+(5*4)+(4*2)+(3*8)+(2*8)+(1*5)=147
147 % 10 = 7
So 83428-85-7 is a valid CAS Registry Number.

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