Cyclohexyloxycarbonyl-DL-threonin, also known as Cyclohexyloxycarbonyl-DL-4-amino-3-hydroxybutanoic acid, is a synthetic chemical compound with the molecular formula C13H21NO6. It is a derivative of the amino acid threonine, where the hydroxyl group is protected by a cyclohexyloxycarbonyl (Cboc) group. This modification is commonly used in peptide synthesis to protect the side chain hydroxyl group of threonine, preventing unwanted side reactions during the coupling process. Cyclohexyloxycarbonyl-DL-threonin is a racemic mixture, containing equal parts of the D and L isomers, and is used as a building block in the synthesis of various peptides and proteins. Its protected nature allows for controlled and efficient peptide assembly, making it a valuable component in the field of biochemistry and pharmaceuticals.

3309-49-7

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Basic information
1. Product Name: Cyclohexyloxycarbonyl-DL-threonin
2. Synonyms:
3. CAS NO:3309-49-7
4. Molecular Formula:
5. Molecular Weight: 245.276
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: Cyclohexyloxycarbonyl-DL-threonin(CAS DataBase Reference)
10. NIST Chemistry Reference: Cyclohexyloxycarbonyl-DL-threonin(3309-49-7)
11. EPA Substance Registry System: Cyclohexyloxycarbonyl-DL-threonin(3309-49-7)
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: 3309-49-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 3309-49-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,0 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3309-49:
(6*3)+(5*3)+(4*0)+(3*9)+(2*4)+(1*9)=77
77 % 10 = 7
So 3309-49-7 is a valid CAS Registry Number.

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