We had imported 200 kilos of ABC against your Indent # 1184/2005 dated 11.08.2005 vide Batch #. 20050801 dated 22.08.2005 with Specific Rotation Criteria: -95.0˚ ~ -103.0˚ and Result was -96.8˚.
Now, we have Imported ( imported)200 kilos of ABC against Indent #. 1305/2008 dated 08.09.2008 vide Batch #. M20080907 dated 15.10.2008 with Specification Rotation Criteria: -76.0˚ ~ 81.0˚ and Result -79.7˚.
There is a lot of difference in Specific Optical Rotation. Our Quality Control Department rejected this lot on that ground.(There is a lot of difference in the Specific Optical Rotation due to which our Quality Control Department has rejected this lot.)
The Specific Optical Rotation must be on the same criteria which was set for the previous Batch #. 20050801.
We request you to advise your Principal for the replacement of the consignment on an urgent basis.
Both the certificates of analysis are attached for your reference.
Looking forward to having a favorable response.
Not a teacher