The chemical "Z-Glu(NH2)-Asp(NH2)Cys(CH2C6H5)-OC2H5" is a peptide compound consisting of four amino acids: glutamic acid (Glu), aspartic acid (Asp), cysteine (Cys), and a modified ethyl glycine (Gly). The "Z" prefix indicates the presence of a carbobenzyloxy (Cbz) protecting group, which is commonly used in peptide synthesis to protect the amino group. The "NH2" groups in Glu and Asp denote the free amino groups, while the "CH2C6H5" in Cys represents the phenyl group attached to the side chain. The "OC2H5" suffix indicates the presence of an ethyl ester group, which is often used to increase the solubility of the peptide in organic solvents. This specific sequence and modification suggest that the compound is designed for specific biological or chemical applications, such as a potential drug candidate or a component in a chemical synthesis process.

21687-88-7

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Basic information
1. Product Name: Z-Glu(NH₂)-Asp(NH₂)Cys(CH₂C₆H₅)-OC₂H₅
2. Synonyms:
3. CAS NO:21687-88-7
4. Molecular Formula:
5. Molecular Weight: 615.707
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(NH₂)-Asp(NH₂)Cys(CH₂C₆H₅)-OC₂H₅(CAS DataBase Reference)
10. NIST Chemistry Reference: Z-Glu(NH₂)-Asp(NH₂)Cys(CH₂C₆H₅)-OC₂H₅(21687-88-7)
11. EPA Substance Registry System: Z-Glu(NH₂)-Asp(NH₂)Cys(CH₂C₆H₅)-OC₂H₅(21687-88-7)
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: 21687-88-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 21687-88-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,8 and 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21687-88:
(7*2)+(6*1)+(5*6)+(4*8)+(3*7)+(2*8)+(1*8)=127
127 % 10 = 7
So 21687-88-7 is a valid CAS Registry Number.

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