Octadecanedioic Acid Mono-Tert‐Butyl Ester Semaglutide Side Chain 843666-40-0

CAS No.

843666-40-0

Molecular Formula

C22H42O4

Molecular Weight

370.573

Quality Standard

98% up by HPLC

Appearance

White powder

Appearance

White to off-white powder

Conforms

Identification - 1H-NMR

Conform to structure

Conforms

Related substances

Octadecanedioic acid ≤ 1.0%

Tetradecandioic acid mon-ter-butyl ester ≤ 0.1%

Hexadecanedioic acid mono-tert-butyl ester ≤ 0.2%

Octadecanedioic acid mono-methyl ester ≤ 0.2%

Octadecanedioic acid mono-ethy1 ester ≤ 0.2 %

Any single unspecified ≤ 0.5%

0.84%

Not detected

Not detected

Not detected

0.03%

0.34%

Water content (K.F)

≤ 1.0%

0.06%

Assay

≥ 98%

98.67%

Conclusion

The sample complies with the enterprise specification