"Z-Arg(Tos)-Glu-(OBu^t)-Val-Glu(OBu^t)-Gly-OEt" is a peptide sequence consisting of seven amino acids. It starts with Z-Arg(Tos), where "Z" is a protecting group for the carboxyl group, and "Tos" is a tosyl group protecting the guanidinium group of arginine. This is followed by glutamic acid (Glu), valine (Val), and another glutamic acid with a tert-butyl (OBu^t) protecting group. The sequence ends with glycine (Gly) and an ethyl ester (OEt) protecting group. This peptide is likely used in chemical synthesis, particularly in the preparation of larger peptides or proteins, where the protecting groups are crucial for controlling the reactivity of specific functional groups during the synthesis process.

74221-47-9

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Basic information
1. Product Name: Z-Arg(Tos)-Glu-(OBu^t)-Val-Glu(OBu^t)-Gly-OEt
2. Synonyms: Z-Arg(Tos)-Glu-(OBu^t)-Val-Glu(OBu^t)-Gly-OEt
3. CAS NO:74221-47-9
4. Molecular Formula:
5. Molecular Weight: 1017.21
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-Arg(Tos)-Glu-(OBu^t)-Val-Glu(OBu^t)-Gly-OEt(CAS DataBase Reference)
10. NIST Chemistry Reference: Z-Arg(Tos)-Glu-(OBu^t)-Val-Glu(OBu^t)-Gly-OEt(74221-47-9)
11. EPA Substance Registry System: Z-Arg(Tos)-Glu-(OBu^t)-Val-Glu(OBu^t)-Gly-OEt(74221-47-9)
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: 74221-47-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 74221-47-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,2,2 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74221-47:
(7*7)+(6*4)+(5*2)+(4*2)+(3*1)+(2*4)+(1*7)=109
109 % 10 = 9
So 74221-47-9 is a valid CAS Registry Number.

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74221-48-0 C₄₀H₆₆N₈O₁₂S

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