PTS*Ala-Phe-OBzl, also known as p-toluenesulfonyl-protected alanine-phenylalanine dipeptide benzyl ester, is a synthetic chemical compound that consists of two amino acids, alanine and phenylalanine, linked together by a peptide bond. The alanine residue is protected by a p-toluenesulfonyl (PTS) group, while the phenylalanine residue is esterified with a benzyl group (OBzl). PTS*Ala-Phe-OBzl is commonly used in organic synthesis, particularly in the preparation of peptide-based drugs and other bioactive molecules, as the protecting groups can be selectively removed under mild conditions to yield the desired peptide sequence. The PTS group provides stability to the peptide bond during synthesis, while the OBzl group prevents unwanted side reactions and facilitates purification.

1738-81-4

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Basic information
1. Product Name: PTS*Ala-Phe-OBzl
2. Synonyms:
3. CAS NO:1738-81-4
4. Molecular Formula:
5. Molecular Weight: 498.6
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: PTS*Ala-Phe-OBzl(CAS DataBase Reference)
10. NIST Chemistry Reference: PTS*Ala-Phe-OBzl(1738-81-4)
11. EPA Substance Registry System: PTS*Ala-Phe-OBzl(1738-81-4)
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: 1738-81-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 1738-81-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,3 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1738-81:
(6*1)+(5*7)+(4*3)+(3*8)+(2*8)+(1*1)=94
94 % 10 = 4
So 1738-81-4 is a valid CAS Registry Number.

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