"Z-Glu(OtBu)-Glu(OtBu)-Ala-N₂H₃" is a peptide compound consisting of four amino acids: glutamic acid (Glu), alanine (Ala), and two additional glutamic acid residues with tert-butyl (OtBu) protecting groups. The "Z" prefix indicates the presence of a benzyloxycarbonyl (Cbz) protecting group on the N-terminal amino group, which is crucial for protecting the peptide from unwanted side reactions during synthesis. The "N₂H₃" at the C-terminus signifies the presence of a tris(2-aminoethyl)amine group, which is often used as a protecting group for the peptide's carboxyl terminus. This specific sequence and protection scheme are designed to facilitate the controlled synthesis of the peptide, ensuring that the amino acids are linked in the correct order and that the peptide remains stable until the desired point in the synthesis process.

42538-78-3

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Basic information
1. Product Name: Z-Glu(OtBu)-Glu(OtBu)-Ala-N₂H₃
2. Synonyms:
3. CAS NO:42538-78-3
4. Molecular Formula:
5. Molecular Weight: 607.704
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: Z-Glu(OtBu)-Glu(OtBu)-Ala-N₂H₃(CAS DataBase Reference)
10. NIST Chemistry Reference: Z-Glu(OtBu)-Glu(OtBu)-Ala-N₂H₃(42538-78-3)
11. EPA Substance Registry System: Z-Glu(OtBu)-Glu(OtBu)-Ala-N₂H₃(42538-78-3)
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: 42538-78-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 42538-78-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,5,3 and 8 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 42538-78:
(7*4)+(6*2)+(5*5)+(4*3)+(3*8)+(2*7)+(1*8)=123
123 % 10 = 3
So 42538-78-3 is a valid CAS Registry Number.

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