The chemical "Z-Glu(NH2)-Ala-Cys(SCH2Ph)-Ala-Gly-NHNH2" is a peptide compound consisting of six amino acids. It features a glutamic acid (Glu) residue with a carbobenzoxy (Z) protecting group, an alanine (Ala) residue, a cysteine (Cys) residue with a phenylmethylthio (SCH2Ph) group, another alanine (Ala) residue, a glycine (Gly) residue, and a terminal hydrazine (NHNH2) group. This specific sequence and modification suggest that it may be designed for specific biological interactions or as a component in a larger chemical synthesis process, potentially for pharmaceutical or research purposes. The protecting group on the glutamic acid and the phenylmethylthio group on the cysteine are likely used to control the reactivity of these residues, which can be important in peptide synthesis to prevent unwanted side reactions.

20728-00-1

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Basic information
1. Product Name: Z-Glu(NH₂)-Ala-Cys(SCH₂Ph)-Ala-Gly-NHNH₂
2. Synonyms:
3. CAS NO:20728-00-1
4. Molecular Formula:
5. Molecular Weight: 686.789
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)-Ala-Cys(SCH₂Ph)-Ala-Gly-NHNH₂(CAS DataBase Reference)
10. NIST Chemistry Reference: Z-Glu(NH₂)-Ala-Cys(SCH₂Ph)-Ala-Gly-NHNH₂(20728-00-1)
11. EPA Substance Registry System: Z-Glu(NH₂)-Ala-Cys(SCH₂Ph)-Ala-Gly-NHNH₂(20728-00-1)
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: 20728-00-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 20728-00-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,2 and 8 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20728-00:
(7*2)+(6*0)+(5*7)+(4*2)+(3*8)+(2*0)+(1*0)=81
81 % 10 = 1
So 20728-00-1 is a valid CAS Registry Number.

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