The phrase "as ostensibly" is correct and usable in written English.
It can be used to indicate that something appears to be true or is presented in a certain way, but may not necessarily reflect reality.
Example: "The project was presented as ostensibly beneficial to the community, but many questioned its true impact."
Alternatives: "seemingly" or "apparently".
The point of the committee is to consider the bill in detail, so as, ostensibly, not to waste time in the Senate or House on bills that will not garner enough support to move on.
Even something as ostensibly simple as the serial comma can arouse strong feelings.
This has meant that ambitious or innovative producers in Europe now often make their best or best-selling wines as ostensibly plain vin du pays.
Even at a bank as ostensibly well-run as JPMorgan, the incentives still exist for giant, risky bets to be made that can go very wrong.
Developed through increased financial investment by rich countries, SEZs offer tax breaks and reduced regulation as well as, ostensibly, opportunities for work and autonomy.
4.25pm GMT 16th over: India 117-2 (Dhoni 2 Kohli 53) Target 139 Mortaza comes back into what we're obliged to refer to as ostensibly an attack.
Naturally, Shelby et al. have now promised to block him as well — ostensibly because the bureau requires "structural changes" to make it more "transparent".
CAMP troops were searching without warrants not only the homes of suspected pot growers, but also the neighbors' homes as well, ostensibly to "protect themselves".
One of the scariest things I hear, though, isn't ostensibly as scary as autonomous death machines.
Behind all the happy faces that she sees, ostensibly as happy as hers, there is utter turmoil.
Agents who worked with Mr. Bulger allowed him to continue his criminal activities, ostensibly as long as no violence was committed.
