ID-11 uses a different buffering agent than D-76; otherwise, the developers are quite similar. Neither contain Phenedone.(posted 8409 days ago)ID-11+ is no longer made. It contained a sequestering agent which was helpful for large tank processing, but proved less desirable for small tank processing. It was discontinued, and ID-11 reverted to the original formula.
BTW, MSDSs are available from the ILFORD web site for all ILFORD chemistry.
David Carper ILFORD Technical Service