Z-Glu(OBut)-ONB, also known as N-benzyloxycarbonyl-L-glutamic acid γ-benzyl ester, is a chemical compound derived from L-glutamic acid, an essential amino acid. In Z-Glu(OBut)-ONB, the carboxylic acid group of glutamic acid is protected by a benzyl ester (ONB), and the amino group is protected by a benzyloxycarbonyl (Z) group. The OBut group indicates that the side chain carboxylic acid of glutamic acid is also protected by a tert-butyl ester. Z-Glu(OBut)-ONB is commonly used in peptide synthesis as a protected amino acid building block, allowing for the controlled formation of peptide bonds while preventing unwanted side reactions. The protecting groups can be removed under specific conditions to yield the desired peptide sequence.

49761-39-9

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Basic information
1. Product Name: Z-Glu(OBut)-ONB
2. Synonyms:
3. CAS NO:49761-39-9
4. Molecular Formula:
5. Molecular Weight: 498.533
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(OBut)-ONB(CAS DataBase Reference)
10. NIST Chemistry Reference: Z-Glu(OBut)-ONB(49761-39-9)
11. EPA Substance Registry System: Z-Glu(OBut)-ONB(49761-39-9)
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: 49761-39-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 49761-39-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,7,6 and 1 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 49761-39:
(7*4)+(6*9)+(5*7)+(4*6)+(3*1)+(2*3)+(1*9)=159
159 % 10 = 9
So 49761-39-9 is a valid CAS Registry Number.

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